In the circuit shown below,the key K is close | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) At $t = 0$,the inductor $L$ acts as an open circuit. The current flows only through resistor $R_2 = 10 \ \Omega$. Therefore,the current $I_0 = V /

Vedclass · Accepted Answer

$1 \ A$ at $t = 0$ and $3 \ A$ at $t = \infty$

Vedclass · Answer

(C) At $t = 0$,the inductor $L$ acts as an open circuit. The current flows only through resistor $R_2 = 10 \ \Omega$. Therefore,the current $I_0 = V / R_2 = 10 \ V / 10 \ \Omega = 1 \ A$.At $t = \infty$,the inductor $L$ acts as a short circuit. The circuit consists of two resistors $R_1 = 5 \ \Omega$ and $R_2 = 10 \ \Omega$ in parallel. The equivalent resistance $R_{eq} = (R_1 	imes R_2) / (R_1 + R_2) = (5 	imes 10) / (5 + 10) = 50 / 15 = 10 / 3 \ \Omega$.The current $I_{\infty} = V / R_{eq} = 10 / (10 / 3) = 3 \ A$.

In the circuit shown below,the key $K$ is closed at $t = 0$. The current through the battery is

Similar Questions

The circuit shown consists of a switch $S$,a battery $B$ of emf $E$,a resistance $R$,and an inductor $L$. What is the current in the circuit at the instant the switch $S$ is closed?

Find the time constant of the following circuit.

An inductance $L$ and a resistance $R$ are first connected to a battery. After some time,the battery is disconnected,but $L$ and $R$ remain connected in a closed circuit. Then the current reduces to $37\%$ of its initial value in

The resistance $R$ is the same as that of the coil that makes $L$. Which of the following statements gives the correct description of the happenings when the switch $S$ is closed?

Vedclass Test Series

Exam Paper Generator

Online Exam Module