Current Electricity

Identify the valid statements relevant to the given circuit at the instant when the key is closed. [figure] Choose the correct answer from the options given below:

1. A, C Only
2. C, D Only
3. A, B, D Only
4. B, C, D Only

At steady state the charge on the capacitor, as shown in the circuit below, is . [figure]

Given below are two statements : In the light of the above statements, choose the correct answer from the options given below.

1. Statement-I is false but Statement-II is true
2. Statement-I is true but Statement-II is false
3. Both Statement-I and Statement-II are false
4. Both Statement-I and Statement-II are true

Which of the following resistivity ( ) v/s temperature ( T ) curves is most suitable to be used in wire bound standard resistors?

1. [figure]
2. [figure]
3. [figure]
4. [figure]

Sliding contact of a potentiometer is in the middle of the potentiometer wire having resistance Rp=1 as shown in the figure. An external resistance of Re=2 is connected via the sliding contact. The electric current in the circuit is : [figure]

1. 1.35 A
2. 0.9 A
3. 1.0 A
4. 0.3 A

The net current flowing in the given circuit is A. [figure]

The equivalent resistance between A and B is : [figure]

1. 18
2. 27
3. 19
4. 25

The current flowing through the 1 resistor is n10 A. The value of n is . [figure]

The effective resistance between A and B, if resistance of each resistor is R, will be : [figure]

1. 8R3
2. 4R3
3. 23R
4. 5R3

To determine the resistance (R) of a wire, a circuit is designed below. The V-I characteristic curve for this circuit is plotted for the voltmeter and the ammeter readings as shown in figure. The value of R is . [figure]