Question

how much heat will an instrument of 12W produce in one minute if it is connected to a battery of 12V?​

Answer 1

Explanation:

1. at 1st you need to know ampere or I
2. so w= v.a
3. so a=1a.
4. so h=vit or i^2.r.t
5. so h=12×1×60=720j=0.72kj