Network Theory And Analysis - Study Mode

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[#326] Two coils X of 1000 turns and Y of 2000 turns are placed such that 60% of the flux produced by coil X links coil Y. A current of 1 A in coil X produces 0.1 mWb flux. The mutual inductance between the coils is

(A) 0.12 H

(B) 0.08 H

(C) 0.06 H

(D) 0.04 H

Correct Answer

(A) 0.12 H

[#327] In the network shown in the figure, the switch had remained closed for a long time on the 10 V source side. At time t = 0, it is changed to the 12 V side, then after one time constant, the voltage across 5 Ω in the circuit will be

(A) 5 V

(B) 5e -1 V

(C) 10 V

(D) 12 V

Correct Answer

(A) 5 V

[#328] The network shown in the figure draw a current I. If the ends a and b are shorted, the current drawn would be

(A) 6 I

(B) 4 I

(C) 2 I

(D) I

Correct Answer

(D) I

[#329] The circuit shown in the figure represents a

(A) voltage controlled voltage source

(B) voltage controlled current source

(C) current controlled current source

(D) current controlled voltage source

Correct Answer

(C) current controlled current source

[#330] If R 1 = R 2 = R 4 = R and R 3 = 1.1 R in the bridge circuit shown in the figure, then the reading in the ideal voltmeter connected between a and b is

(A) 0.238 V

(B) 0.138 V

(C) -0.238 V

(D) 1 V

Correct Answer

(C) -0.238 V