Question

What is the power of torch bulb rated at 2.5v and 500ma?

Answer 1

V=2.5 I=500ma

P=VI

=2.5×500

=25×50

= 1250W.

Answer 2

Answer:

Explanation:

Volt =2.5 mA=500

1w=1volt×1ampher

So

W = 2.5× 500= 1250.0

W= 1250