Questions
Statement 1: The quantity L/R possesses dimensions of time.
Statement 2: To reduce the rate of increases of current through a solenoid, one should increase the time constant (L/R).
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Correct option is A
The current i is given by i=ER(1-e-RtL )=ER(1-e-tτ ) ⇒didt=ERτ e-tτ In order to decreases the rate of increase of current through solenoid, we have to increase the time constant LR.Also LR=ϕ/iv/i=φv=volt secvolt=secSimilar 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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