A series `LCR` circuit with `R = 20 Omega, L = 1.5 H` and `C = 35 mu F` is connected to a variable frequency `200 V` ac supply. When the frequency of the supply equals the natural frequency of the circuit, what is the average power in `kW` transferred to the circuit in one complete cycle?

Explanation

To solve the problem step by step, we will follow these steps:

### Step 1: Identify the given values
We have:
- Resistance, \( R = 20 \, \Omega \)
- Inductance, \( L = 1.5 \, H \)
- Capacitance, \( C = 35 \, \mu F = 35 \times 10^{-6} \, F \)
- Voltage, \( V = 200 \, V \)
...