A coil a capacitor and an `AC` source of rms voltage `24 V` are connected in series. By varying the frequency of the source, a maximum rms current of 6 A is observed. If coil is connected is at DC batteryof emf 12 volt and internal resistance `4Omega`, then current through it in steady state isA. 2.4 AB. 1.8 AC. 1.5 AD. 1.2 A

A coil a capacitor and an `AC` source of rms voltage `24 V` are connec

1.	A coil a capacitor and an `AC` source of rms voltage `24 V` are connected in series. By varying the frequency of the source, a maximum rms current of 6 A is observed. If coil is connected is at DC batteryof emf 12 volt and internal resistance `4Omega`, then current through it in steady state isA. 2.4 AB. 1.8 AC. 1.5 AD. 1.2 A
Answer» Correct Answer - C Let R be the resistace of coil + capacitor . Then, R = 24/6 = 4`Omega` In this second case , `implies` `underset(rms)(I)` = 12 / 4 + 4 = 12/8 = 1.5 A

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