Current Electricity

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Test Your Knowledge on Current Electricity

Welcome to the Current Electricity quiz! This engaging quiz is designed to test your understanding of key concepts in electrical currents, resistance, and potential difference.

Get ready to challenge yourself with questions like:

What is the unit of current?
How does a rheostat function?
What does Ohm's Law state?

17 Questions4 MinutesCreated by ChargingCircuit101

The potential difference required to pass a current 0.2 A in a wire of resistance 20W is ____.

100 V

4 V

.01 V

40 V

The resistance of an electric bulb drawing 1.2 A current at 6.0 V is___________.

5 Ω

0.2 Ω

2 Ω

0.5 Ω

Two resistances of 100 W and zero ohm are connected in parallel. The overall resistance will be

100 W

50 W

25 W

zero ohm

What is the rate of flow of electric charges called?

Electric potential

electric conductance

Electric current

none of these

Which instrument is used for measuring electric potential?

Ammeter

galvanometer

voltmeter

potentiometer

When one unit electric charge moves from one point to another point in an electric circuit, then the amount of work done in joules is known as?

Electric current

electric resistance

electric conductance

potential difference

The resistance of a conductor is directly proportional to:

Its area of cross-section

density

melting point

Length

The purpose of a rheostat is:

Increase the magnitude of current only

Decrease the magnitude of current only

Increase or decrease the magnitude of current

None of these

Point to be kept in mind for verification of Ohm’s Law is:

Ammeter and voltmeter should be connected in series

Ammeter should be connected in series and voltmeter in parallel

Ammeter should be connected in parallel and voltmeter in series

Ammeter and voltmeter should be connected in parallel

When a 40V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. Find the value of the resistance of the resister:

5000 Ω

800 Ω

0.8 Ω

none of these

A battery of 6V is connected in series with resisters of 0.1 ohm , 0.15 ohm,0.2 ohm,0.25 ohm and 6 ohm. How much current would flow through each resistor?

0.895A

2.22A

none of these

Which of the following statements does not represent ohm's law?

Current / potential difference=constant

Potential difference / current=constant

Potential difference=urrent x resistance

Current=resistance x potential difference

The hindrance presented by material of conductor to the smooth passing of electric current is known as:

Resistance

Conductance

Inductance

None of these

Current Electricity

Test Your Knowledge on Current Electricity

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