In the figure shown below, the current through loop 1 be I1 and through the loop 2 be I2, then the current flowing through the resistor R2 will be?

I1 is the current flowing in the first mesh. I2 is the current flowing in the second mesh and I3 is the current flowing in the top mesh. If all three currents are flowing in the clockwise direction, find the value of I1, I2 and I3.

A

7.67A, 10.67A, 2A

B

10.67A, 7.67A, 2A

C

7.67A, 8.67A, 2A

D

3.67A, 6.67A, 2A

The parallel combination of a 6.8 kΩ resistor and a 10 kΩ resistor is in series with the parallel combination of a 2.2 kΩ resistor and a 1 kΩ resistor. A 100 V source is connected across the circuit. The resistor(s) with the greatest voltage drop is (are)

A

6.8 kΩ

B

2.2 kΩ

C

6.8 kΩ and 10 kΩ

D

2.2 kΩ and 1 kΩ

A 40 Ω resistor is in parallel with an 80 Ω resistor. Current in the 40 Ω resistor is 6 A. How will you add a third resistor and what will be its value if the line-current is to be 10 A?

A

Parallel, 240 Ω

B

Parallel, 20 Ω

C

Series, 24 Ω

D

Series, 200 Ω

Determine the resistance (in Ohms) of resistor when the potential difference between the ends of the resistor is 24 V and the current flowing through the resistor is 3 A.

A

12

B

10

C

8

D

4

What is the current flowing through a resistor of 24 ohms if a capacitor of 10 microfarads is placed in parallel to the resistor and 4V DC voltage supply is placed in series with the resistor?

A

4Ampere

B

3Ampere

C

6Ampere

D

0Ampere

Four resistors are connected in parallel. Fifteen mA flows through resistor R. If the second resistor is 2R, the third resistor 3R, and the fourth resistor 4R, the total current in the circuit is

A

60 mA

B

15 mA

C

135 mA

D

31.25 mA

A 12 kΩ resistor, a 15 kΩ resistor, and a 22 kΩ resistor are in series with two 10 kΩ resistors that are in parallel. The source voltage is 75 V. Current through the 15 kΩ resistor is approximately

A

14 mA

B

1.4 mA

C

5 mA

D

50 mA

An infinitely long wire carrying a current $$I\left( t \right) = {I_0}\cos \left( {\omega t} \right)$$ is placed at a distance a from a square loop of side a as shown in the figure. If the resistance of the loop is R, then the amplitude of the induced current in the loop is
Electromagnetic Theory mcq question image

Electromagnetic Theory mcq question image

A

$$\frac{{{\mu _0}}}{{2\pi }} \cdot \frac{{a{I_0}\omega }}{R}\ln 2$$

B

$$\frac{{{\mu _0}}}{\pi } \cdot \frac{{a{I_0}\omega }}{R}\ln 2$$

C

$$\frac{{2{\mu _0}}}{\pi } \cdot \frac{{a{I_0}\omega }}{R}\ln 2$$

D

$$\frac{{{\mu _0}}}{{2\pi }} \cdot \frac{{a{I_0}\omega }}{R}$$

Consider a conducting loop of radius a and total loop resistance R placed in a region with a magnetic field B thereby enclosing a flux $${\phi _0}$$ . The loop is connected to an electronic circuit as shown, the capacitor being initially uncharged.
Electromagnetic Theory mcq question image

If the loop is pulled out of the region of the magnetic field at a constant speed u, the final output voltage V_out is independent of

A

$${\phi _0}$$

B

u

C

R

D

C

A certain series circuit consists of a $$\frac{1}{8}$$ W resistor, a $$\frac{1}{4}$$ W resistor and a $$\frac{1}{2}$$ W resistor. The total resistance is 1200 Ω. If each resistor is operating in the circuit at its maximum power dissipation, total current flow is

A

27 mA

B

2.7 mA

C

19 mA

D

190 mA

In the figure shown below, the current through loop 1 be I1 and through the loop 2 be I2, then the current flowing through the resistor R2 will be?

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