Quizsummary
0 of 15 questions completed
Questions:
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
Information
Ohm’s Law Quiz Test Questions1
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 15 questions answered correctly
Your time:
Time has elapsed
You have reached 0 of 0 points, (0)
Average score 

Your score 

Categories
 Not categorized 0%
 1
 2
 3
 4
 5
 6
 7
 8
 9
 10
 11
 12
 13
 14
 15
 Answered
 Review

Question 1 of 15
1. Question
A light bulb of 5 ohm resistance is connected to a battery of 2V. Calculate the current that will flow through the circuit?
Correct
Incorrect
Answer: 0.4 A
Explanation:
I = V/R
= 2/ 5
= 0.4 A 
Question 2 of 15
2. Question
The ratio of voltage to current at end point of conducting wire is …………………………………
Correct
Incorrect

Question 3 of 15
3. Question
A light bulb requires 4 A current to produce light. Its internal resistance is 0.2 Ω and a resistance of 1.8Ω is connected in series with the bulb. What should be the battery voltage to provide the required current in circuit.
Correct
Incorrect
Answer: 8 Volts
Explanation:
Total resistance = 0.2 + 1.8 = 2 Ω
Voltage = I * R
= 4 * 2 = 8 Volts 
Question 4 of 15
4. Question
What is the power dissipation in a resistor of 5 Ω which is connected to 5 Volts battery?
Correct
Incorrect
Answer: 5 Watts
Explanation:
Power = V^{2} / R
= (5)^{2} / 5
= 5 Watts 
Question 5 of 15
5. Question
If the power dissipation in a resistor of 4Ω is 16 Watts, what is the current flowing in a resistor?
Correct
Incorrect
Answer: 2 A
Explanation:
Power dissipation in resistor = 16 Watts
I^{2} R = 16
I^{2} (4) = 16
I^{2} = 16/4 = 4
I = √4
i = 2 A 
Question 6 of 15
6. Question
If the resistance of the of circuit is zero, it is called as “short circuit”.
Correct
Incorrect

Question 7 of 15
7. Question
Find the conductance of a wire , if the resistance of the wire is 5Ω?
Correct
Incorrect
Answer: 0.2 mho
Explanation:
Resistance = 1 / Conductance
– 1/ 5 = 0.2 mho 
Question 8 of 15
8. Question
A volt meter should be connected in series to measure the voltage in an element.
Correct
Incorrect

Question 9 of 15
9. Question
How many 2 V batteries should be connected in series to deliver 4A of current to the LED which has 2Ω resistance?
Correct
Incorrect
Answer : 4
Explanation:
V = IR
= 2 * 4 = 8 volts
total batteries required = 8/2 = 4 
Question 10 of 15
10. Question
Two lights which has two resistances 2Ω and 3Ω are connected in series to a battery of 20 Volts. If one 3Ω light is unscrewed in working circuit then what is the total current flow in circuit?
Correct
Incorrect
Answer: 0 A
Explanation:
In a series working circuit if one light is unscrewed, then circuit will open, zero current will flow through the circuit. 
Question 11 of 15
11. Question
If the power dissipation in an electrical wire is 8 watts. If its conductivity is 0.5 mho, what is the current flow in circuit?
Correct
Incorrect
Answer : 2 A
Explanation :
Resistance of wire = 1/ conductivity
= 1/ 0.5 = 2 Ω
Power dissipation = 8 Watts
I^{2} R = 8
I^{2} = 8/2 = 4
I = 2 A 
Question 12 of 15
12. Question
What is conductance of CD Portable player if it is operated with 12 V battery and 6 A flowing through it?
Correct
Incorrect
Answer: 0.5 mho
Explanation:
R = V / I
= 12 / 6
= 2 Ω
G = 1/ R
= 1/ 2 = 0.5 mho 
Question 13 of 15
13. Question
If the electrical circuit is open circuited, what will be the resistance between the two end open terminals………………………………
Correct
Incorrect

Question 14 of 15
14. Question
Correct
Incorrect
Answer: 2 Ω
Explanation :
Total resistance = V / I
= 10 / 2.5
= 4 Ω
R + 2 = 4
R = 2 Ω 
Question 15 of 15
15. Question
Two bulbs are connected in parallel with a resistance of 2Ω and 4Ω . If the voltage across 4 Ω bulb is 4 volts. What is voltage across 2 Ω resistance bulb?
Correct
Incorrect
Answer: 4 volts
Explanation :
In parallel connection the voltage is same. So the voltage in 2 Ω resistance bulb is 4 Volts.