A coil of inductance 0.5 h and a resistor of resistance 100ω are connected in series to a 240v,50 hz supply. (a) find the maximum current in the circuit (b) what is the time lag between voltage maximum and current maximum?
Step 1: Given
Inductance, L = 0.5H
Frequency, f = 50Hz
Step 2: Calculate impedance for LR circuit
Now, the impedance for LR circuit,
Step 3: Calculate the Maximum Current In The Circuit
According to ohms law for AC, , here is the RMS current.
here is the maximum current.
thus, the The Maximum Current In The Circuit is .
Step 4: Calculate the Time Lag Between Voltage Maximum And Current Maximum
now, the time lag, .
Thus, the time lag is .
(A) The Maximum Current In The Circuit is .
(B) The Time Lag Between Voltage Maximum And Current Maximum is .