The Following Section consists of Multiple Choice Questions on Ohm’s Law.
Quizsummary
0 of 20 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
Information
Ohm’s Law MCQ
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 20 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Engineering 0%
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 Answered
 Review

Question 1 of 20
1. Question
1 pointsThe formula to find I when the values of V and R are known is
Correct
Incorrect

Question 2 of 20
2. Question
1 pointsA resistor is connected across a 50 V source. What is the current in the resistor if the color code is red, orange, orange, silver?
Correct
Incorrect

Question 3 of 20
3. Question
1 pointsYou are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?
Correct
Incorrect

Question 4 of 20
4. Question
1 pointsIf you wish to increase the amount of current in a resistor from 120 mA to 160 mA by changing the 24 V source, what should the new voltage setting be?
Correct
Incorrect

Question 5 of 20
5. Question
1 pointsTwo bulbs marked 200 watt250 volts and 100 watt250 volts are joined in series to 250 volts supply. Power consumed in circuit is
Correct
Incorrect

Question 6 of 20
6. Question
1 pointsAmpere second could be the unit of
Correct
Incorrect

Question 7 of 20
7. Question
1 pointsAn electric current of 5 A is same as
Correct
Incorrect

Question 8 of 20
8. Question
1 pointsAn electron of mass m kg and having a charge of e coulombs travels from rest through a potential difference of V volts. Its kinetic energy will be
Correct
Incorrect

Question 9 of 20
9. Question
1 pointsThe value of the following is given by 100 (kilo ampere ) x ( micro ampere ) 100 milli ampere * 10 ampere
Correct
Incorrect

Question 10 of 20
10. Question
1 pointsA circuit contains two unequal resistances in parallel
Correct
Incorrect

Question 11 of 20
11. Question
1 pointsWhich method can be used for absolute measurement of resistances ?
Correct
Incorrect

Question 12 of 20
12. Question
1 pointsThree 3 ohm resistors are connected to form a triangle. What is the resistance between any two of the corners?
Correct
Incorrect

Question 13 of 20
13. Question
1 pointsHow many different combinations may be obtained with three resistors, each having the resistance R ?
Correct
Incorrect

Question 14 of 20
14. Question
1 pointsOhm’s law is not applicable to
Correct
Incorrect

Question 15 of 20
15. Question
1 pointsA wire of 0.14 mm diameter and specific resistance 9.6 micro ohmcm is 440 cm long. The resistance of the wire will be
Correct
Incorrect

Question 16 of 20
16. Question
1 pointsA metal resistor has resistance of 10 ohm at 0°C and 11 ohms at 160°C, the temperature coefficient is
Correct
Incorrect

Question 17 of 20
17. Question
1 pointsVoltage between point P and Q will be
Correct
Incorrect

Question 18 of 20
18. Question
1 pointsThe current in 4 ohm resistor will be
Correct
Incorrect

Question 19 of 20
19. Question
1 pointsLeast current will flow through
Correct
Incorrect

Question 20 of 20
20. Question
1 pointsTotal power loss in the circuit is
Correct
Incorrect
Quizsummary
0 of 20 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
Information
Ohm’s Law MCQ 2
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 20 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Engineering 0%
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 Answered
 Review

Question 1 of 20
1. Question
1 points“Halfsplitting” is
Correct
Incorrect

Question 2 of 20
2. Question
1 pointsIf doubling the voltage across a resistor doubles the current through the resistor then
Correct
Incorrect

Question 3 of 20
3. Question
1 pointsIf the voltage across a fixed value of resistance is increased five times, what does the current do?
Correct
Incorrect

Question 4 of 20
4. Question
1 pointsIf the resistance in a circuit with constant voltage increases, the current will
Correct
Incorrect

Question 5 of 20
5. Question
1 pointsWhat is the kilowatthour consumption of a 40 W lamp if it remains on for 1750 h?
Correct
Incorrect

Question 6 of 20
6. Question
1 pointsA damaged resistor
Correct
Incorrect

Question 7 of 20
7. Question
1 pointsPower supplies differ from batteries in that
Correct
Incorrect

Question 8 of 20
8. Question
1 pointsIf voltage across a resistance doubles
Correct
Incorrect

Question 9 of 20
9. Question
1 pointsOhm’s law describes the mathematical relationship between
Correct
Incorrect

Question 10 of 20
10. Question
1 pointsEnergy is defined as the ability to
Correct
Incorrect

Question 11 of 20
11. Question
1 pointsThe rate at which work is performed is called
Correct
Incorrect

Question 12 of 20
12. Question
1 pointsA battery’s capacity to deliver power is measured in
Correct
Incorrect

Question 13 of 20
13. Question
1 pointsPower supplies are regulated to prevent the output voltage from changing due to changes in the
Correct
Incorrect

Question 14 of 20
14. Question
1 pointsIf current through a resistance is halved
Correct
Incorrect

Question 15 of 20
15. Question
1 pointsOhm’s law is a relationship between
Correct
Incorrect

Question 16 of 20
16. Question
1 pointsResistivity of a wire depends on
Correct
Incorrect

Question 17 of 20
17. Question
1 pointsWhen n resistances each of value r are connected in parallel, then resultant resistance is x. When these n resistances are connected in series, total resistance is
Correct
Incorrect

Question 18 of 20
18. Question
1 pointsResistance of a wire is r ohms. The wire is stretched to double its length, then its resistance in ohms is
Correct
Incorrect

Question 19 of 20
19. Question
1 pointsKirchhoff’s second law is based on law of conservation of
Correct
Incorrect

Question 20 of 20
20. Question
1 pointsThe mass of proton is roughly how many times the mass of an electron?
Correct
Incorrect
Quizsummary
0 of 20 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
Information
Ohm’s Law MCQ 3
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 20 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Engineering 0%
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 Answered
 Review

Question 1 of 20
1. Question
1 pointsA resistance of 5 ohms is further drawn so that its length becomes double. Its resistance will now be
Correct
Incorrect

Question 2 of 20
2. Question
1 pointsSpecific resistance of a substance is measured in
Correct
Incorrect

Question 3 of 20
3. Question
1 pointsA wire of resistance R has it length and crosssection both doubled. Its resistance will become
Correct
Incorrect

Question 4 of 20
4. Question
1 pointsOhm’s law is not applicable in all the following cases Except
Correct
Incorrect

Question 5 of 20
5. Question
1 pointsConductance is expressed in terms of
Correct
Incorrect

Question 6 of 20
6. Question
1 pointsWe have three resistances of values 2 Ω, 3 Ω and 6 Ω. Which of the following combination will give an effective resistance of 4 Ω?
Correct
Incorrect

Question 7 of 20
7. Question
1 pointsThree equal resistors connected in series across a source of emf together dissipate 10 watts of power. What would be the power dissipated in the same resistors when they are connected in parallel across the same source of emf?
Correct
Incorrect

Question 8 of 20
8. Question
1 pointsFour identical resistors are first connected in parallel and then in series. The resultant resistance of the first combination to the second will be
Correct
Incorrect

Question 9 of 20
9. Question
1 pointsThe unit of electrical conductivity is
Correct
Incorrect

Question 10 of 20
10. Question
1 pointsWhich of the following bulbs will have the least resistance ?
Correct
Incorrect

Question 11 of 20
11. Question
1 pointsThe ratio of the resistance of a 100 W, 220 V lamp to that of a 100 W, 110 V lamp will be nearly
Correct
Incorrect

Question 12 of 20
12. Question
1 pointsThe resistance of a 100 W, 200 V lamp is
Correct
Incorrect

Question 13 of 20
13. Question
1 pointsThe element of electric heater is made of
Correct
Incorrect

Question 14 of 20
14. Question
1 pointsThe element of electric heater is made of
Correct
Incorrect

Question 15 of 20
15. Question
1 pointsThe variation of resistance of iron and some alloys with temperature is shown in figure. The variation of carbon will be represented by
Correct
Incorrect

Question 16 of 20
16. Question
1 pointsCurves A and B represent the properties for materials which have
Correct
Incorrect

Question 17 of 20
17. Question
1 pointsWhich of the following has negative temperature coefficient ?
Correct
Incorrect

Question 18 of 20
18. Question
1 pointsAll of the following have negative temperature coefficient EXCEPT
Correct
Incorrect

Question 19 of 20
19. Question
1 pointsA cube of material of side 1 cm has a resistance of 0.002 ohm between its opposite faces. If the same volume of the material has a length of 8 cm and a uniform crosssection, the resistance of this length will be
Correct
Incorrect

Question 20 of 20
20. Question
1 pointsTwo aluminium conductors have equal length. The crosssectional area of one conductor is four times that of the other. If the conductor having smaller crosssectional area has a resistance of 100 ohms the resistance of other conductor will be
Correct
Incorrect
Quizsummary
0 of 20 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
Information
Ohm’s Law MCQ 4
You have already completed the quiz before. Hence you can not start it again.
Quiz is loading...
You must sign in or sign up to start the quiz.
You have to finish following quiz, to start this quiz:
Results
0 of 20 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Engineering 0%
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 Answered
 Review

Question 1 of 20
1. Question
1 pointsA nichrome wire used as heater coil has the resistance of 1 ohm/m. For a heater of 1000 W at 200 V, the length of wire required will be
Correct
Incorrect

Question 2 of 20
2. Question
1 pointsVariable resistors are
Correct
Incorrect

Question 3 of 20
3. Question
1 pointsLow resistance can be accurately measured by
Correct
Incorrect

Question 4 of 20
4. Question
1 pointsA heating element of a hot plate on an electric cooking range draws 12 amperes from 240 V mains. How many kWh of energy will be consumed in one hour and 15 minutes
Correct
Incorrect

Question 5 of 20
5. Question
1 pointsTemperature coefficient of resistance is expressed in terms of
Correct
Incorrect

Question 6 of 20
6. Question
1 pointsResistivity is usually expressed in terms of
Correct
Incorrect

Question 7 of 20
7. Question
1 pointsWhich material is expected to have least resistivity?
Correct
Incorrect

Question 8 of 20
8. Question
1 pointsThe shunt winding of a motor has a resistance of 85 ohm at 22oC. When the motor runs at full load, its resistance increases to 100 ohms. The resistance temperature coefficient of winding per 0oC is 0.004. The rise in temperature of the winding will be nearly
Correct
Incorrect

Question 9 of 20
9. Question
1 pointsThe resistance temperature coefficient is defined as
Correct
Incorrect

Question 10 of 20
10. Question
1 pointsTwo coils connected in series have resistance of 600 ohm and 300 ohm and temperature coefficients of 0.1% and 0.4% respectively.The resistance of the combination at 50oC will be
Correct
Incorrect

Question 11 of 20
11. Question
1 pointsA 100 W, 200 V filament lamp has operating temperature of 2000oC. The filament material has resistance temperature coefficient of 0.005 at 0oC per oC. The current taken by the lamp at the instant of switching with 200 V supply with filament temperature of 20oC will be
Correct
Incorrect

Question 12 of 20
12. Question
1 pointsThe rating of fuse wire is expressed in terms of
Correct
Incorrect

Question 13 of 20
13. Question
1 pointsWhich of the following material is not used as fuse material?
Correct
Incorrect

Question 14 of 20
14. Question
1 pointsThe voltage drop across the resistor 9 ohm will be
Correct
Incorrect

Question 15 of 20
15. Question
1 pointsTotal power dissipated in the circuit is
Correct
Incorrect

Question 16 of 20
16. Question
1 pointsThe current carrying capacity of the fuse material depends on
Correct
Incorrect

Question 17 of 20
17. Question
1 pointsFor the circuit shown in Figure above, the value of current I will be
Correct
Incorrect

Question 18 of 20
18. Question
1 pointsThe combined resistance of the circuit is
Correct
Incorrect

Question 19 of 20
19. Question
1 pointsA 100 W bulb is connected in series with a room heater of 750 W. What will happen if the bulb is replaced by a 60W bulb?
Correct
Incorrect

Question 20 of 20
20. Question
1 pointsAn immersion rod heats a bucket of water in 15 minutes. In order that the water should boil in 10 minutes
Correct
Incorrect