a 12ohm resistor and a 0 21H inductor are connected in series to an ac source operating at 20V, 50cycle/second - Physics - Electromagnetic Induction

Question

a 12ohm resistor and a 0 21H inductor are connected in series to
an ac source operating at 20V, 50cycle/second the phase angle
between current and source voltage is
1) 30degree
2) 40
3) 80
4) 90

Pratyay Ghosh · Accepted Answer

The phase angle between the current and the voltage is,
φ=tan-1ωLR
Here,
ω=2πf=2π×50=100π rad/s
So,
φ=tan-1100π×0 2112=79 69 degree
So 3 is the right choice

a 12ohm resistor and a 0.21H inductor are connected in series to an ac source operating at 20V, 50cycle/second . the phase angle between current and source voltage is 1) 30degree 2) 40 3) 80 4) 90

a 12ohm resistor and a 0.21H inductor are connected in series to an ac source operating at 20V, 50cycle/second . the phase angle between current and source voltage is

1) 30degree

2) 40

3) 80

4) 90