Electromagnetic Induction and Alternating Current 4 Question 8

8. In the circuit shown here, the point C is kept connected to point A till the current flowing through the circuit becomes constant. Afterward, suddenly point C is disconnected from point A and connected to point B at time t=0. Ratio of the voltage across resistance and the inductor at t=L/R will be equal to

(2014 Main)

(a) e1e

(b) 1

(c) -1

(d) 1ee

Show Answer

Answer:

Correct Answer: 8. (c)

Solution:

  1. After connecting C to B hanging the switch, the circuit will act like an LR discharging circuit.

Applying Kirchhoff’s loop

equation,

VR+VL=0VR=VLVRVL=1



जेईई के लिए मॉक टेस्ट

एनसीईआरटी अध्याय वीडियो समाधान

दोहरा फलक