Question

in an alternating current circuit the phase difference between current i and voltage is phi then wattless component of current will be

Answer 1

wattless current is said to be component of that current, which doesn't consume any power in the circuit.

see figure, here phase difference between current and voltage is $\phi$,

then, $Icos\phi$ along the voltage and $Isin\phi$ perpendicular the voltage.

but $Isin\phi$ doesn't produce any power in the circuit because phase angle between $Isin\phi$ and voltage is π/2.

hence, In an alternating current circuit the phase difference between current i and voltage is phi then wattless component of current will be $\bf{Isin\phi}$

Answer 2

Answer:

I sin Ф

Explanation: