Tolong dibantu y jawabnya beserta cara nya yg mudah, kalo bisa juga penjelasannya. ​

• P = V. I

P = V. V/R

P = V'2/R ~ R = V'2/P

~ R = 220'2/40

= 48400/40

= 1210 Ohm. ✓

~ P = 110'2/1210

= 12100/1210

= 10 W. ✓