Current Electricity Mcqs

Our collections of Multiple choice questions and answers focuses on study of Current Electricity in Physics. These questions are chosen from a collection of most authoritative and best reference books on Physics. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, MDCAT, Teaching jobs Tests and Chemical industry job interviews. One should practice our Mcqs to assimilate knowledge on Current Electricity in Physics comprehensively.

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1.
A fuse is placed in series with the cireuit to protect against

High power

High voltage

High current

Over heating

2.
A neon flashlight cell with an emf of 1.5V gives a current of 15A when connected directly to an ammeter of resistance 0.04?. Internal resistance of the cell is

0.0004?

0.06?

0.10?

0.13?

3.
A wire having very high value of conductance is said to be

Very good conductor

Moderately good conductor

An insulator

No specific criterion available

4.
A wire of uniform area of cross-section A length L and resistance R is cut into two parts. Resistivity of each part

Remains the same

Is doubled

Is halved

Becomes zero

5.
All electrical appliances are connected in parallel to each other between the main line and neutral wire to get

Same current

Same current and potential difference

Different current but same potential difference

Different current and potential differences

6.
An electric iron is marked 20 volts 500W. The units consumed by it in using if for 24 hours will be

12

24

5

1100

7.
An immersion heater of 400 watts kept on for 5 hours will consume electrical power of

2KWh

20KWh

6KWh

12KWh

8.
Circuit which gives continuously varying potential is called

Complex network

Wheat stone bridge

Potential divider

All of above

12.
If 1 ampere current flows through 2m long conductor the charge flow through it in 1 hour will be

3600C

7200C

1C

2C

13.
In liquids and gases the current is due to the motion

Negative charges

Positive charges

Both negative and positive charges

Neutral particles

15.
Internal resistance is the resistance offered by

Source of e m f

Conductor

Resistor

Capacitor

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