Question

A choke coil of resistance 'R' and
inductance L'is connected to an A.C. force
of frequency’f' and maximum voltage Vo,
then, the average power dissipated in the
choke is proportional to.​

Answer 1

Explanation:

As

P

=V

rms

I

rms

cosϕ=

2

V

0

I

0

cosϕ

where, cosϕ=

Z

R

=

wL

R

or

P

=

2

V

0

I

0

×

2πfL

R

∴

P

= average power ∝R