Question

a lamp on a 220 volt Mein has a resistance 500 ohms calculate the heat generated in 1 minute​

Answer 1

Answer:

Power

$p = \frac{ {v}^{2} }{r} = \frac{220 \times 220}{500} =96.8 \: w$

And energy

$e \\ = pt \\ = 96.8 \times 60 \: ws \\ = 5808 \: j\\ = 5.808 \: kj$

Answer 2

Answer:

v=220v

R=500 ohm

I=V/R=220/500=11/25A

H=I*I*R*T

H=(121/625)*500*60=5808J

Explanation: