Questions
The resistance and inductance of series circuit are and 20 H, respectively. At the instant of closing the switch, the current is increasing at the rate 4 A/s. The supply voltage is
detailed solution
Correct option is B
i=i01-e-RtL⇒didt=-i0-RLe-RtL=i0RL·e-RtL At t=0,didt=i0RL=EL⇒4=E20⇒E=80 VTalk to our academic expert!
Similar Questions
In the circuit shown, one of the inductors used is ideal. The potential difference across the batteries is10 V. The current drawn from the battery at steady state, after the switch is closed is
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