The energy dissipated in 1000 s P x 1000 s 2 3 10 J 7 An

Last updated: 6/9/2023

The energy dissipated in 1000 s P x 1000 s 2 3 10 J 7 An inductor of inductance 100 mH is connected in series with a resistance a variable capacitance and an AC source of frequency 2 0 kHz What should be the value of the capacitance so that maximum current may be drawn into the circuit Solution This is an LCR series circuit The current will be maximum when the net reactance is zero For this or 1 COC col 1 1 w L 4n x 20 x 10 s 0 1 H 63 nF C 8 An inductor coil joined to a 6 V battery draws a steady current of 12 A This coil is connected to a capacitor and an AC source of rms voltage 6 V in series If the current in the circuit is in phase with the emf find the rms current Solution The resistance of the coil is R 6 V 12 A 0 5 2 In the AC circuit the current is in phase with the emf This means that the net reactance of the circuit is zero The impedance is equal to the resistance i e