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This mock test of Current Electricity NAT Level - 1 for Physics helps you for every Physics entrance exam.
This contains 10 Multiple Choice Questions for Physics Current Electricity NAT Level - 1 (mcq) to study with solutions a complete question bank.
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*Answer can only contain numeric values

QUESTION: 1

The potential difference (in Volts) between point ** A** and

Solution:

The correct answer is: 0.667

*Answer can only contain numeric values

QUESTION: 2

The total power dissipated (in * Watts*) in the circuit shown here is :

Solution:

The resistances of 6Ω and 3Ω are in parallel in the given circuit, their equivalent resistance is

Again ** R_{1}** is in series with 4Ω resistance, hence

= 6Ω

Thus, the total power dissipated in the circuit

The correct answer is: 54

*Answer can only contain numeric values

QUESTION: 3

In the figure the potential difference across 6Ω resistor is 48** V**. Then the potential difference (in

Solution:

The correct answer is: 204

*Answer can only contain numeric values

QUESTION: 4

When the resistance of copper wire is 0.1Ω and the radius is 1 ** mm**, then the length of the wire (in

Solution:

The correct answer is: 10

*Answer can only contain numeric values

QUESTION: 5

One filament takes 10 * minutes* to heat a kettle and another takes 15

Solution:

For first filament

For second filament

When placed in parallel

From Eqs(1), (2), (3) we get

The correct answer is: 6

*Answer can only contain numeric values

QUESTION: 6

For what value of unknown resistance ** X** (in Ω), the potential difference between

Solution:

For balance bridge

The correct answer is: 6

*Answer can only contain numeric values

QUESTION: 7

Three resistance ** P, Q, R** each of 2Ω and an unknown resistance

Solution:

The bridge formed with given resistance is a balanced wheat stone’s bridge.

The situation can be depicted as shown in figure.

As resistances * S* and 6Ω are in parallel their effective resistance is

or 4* S* = 12

or

The correct answer is: 3

*Answer can only contain numeric values

QUESTION: 8

For the network of resistance shown in the figure the equivalent resistance of the network between the points ** A** and

Solution:

The correct answer is: 16

*Answer can only contain numeric values

QUESTION: 9

In the circuit of figure ** A_{1}** and

Solution:

The correct answer is: 3

*Answer can only contain numeric values

QUESTION: 10

The value of current ( in Ampere)in the circuit will be.

Solution:

According to Kirchhoff’s junction rule,

Sum of incoming currents = Sum of out going currents

⇒ 2 + 2 = 1 + 1.3 + I

∴ ** I** = 1.7

The correct answer is: 1.7

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