A-coil-of-inductance-0-12Hz-and-resistance-4-is-connected-across-a-240-v-50-Hz-is-supplied-Calculate-the-current-on-the-load-pi-3-142-

Question Number 12683 by tawa last updated on 29/Apr/17

A coil of inductance 0 . 12 Hz and resistance 4 Ω is connected across a 240 v,

50 Hz is supplied . Calculate the current on the load (π = 3.142) .

Answered by ajfour last updated on 29/Apr/17

I_{r m s} = \frac{E_{r m s}}{Z}

Z = \sqrt{R^{2} + 4 π^{2} ν^{2} L^{2}}

= \sqrt{16 + 4 (9.86) (2500) {(0.12)}^{2}}

= 37.9 Ω

I_{r m s} = \frac{240 V}{37.9 Ω} = 6.33 A .

Commented by tawa last updated on 29/Apr/17

God bless you sir .

Facebook Tweet Pin