Question

how long will it take a current of 0.5 A to produce 8.4 KJ of heat when flowing through a resistance of 100 omaga​

Answer 1

Answer:

Explanation:

h=i^2rt

8400=0.5^2 x 100 x t

4t=8400

t=8400/4

t=2100s

Answer 2

Answer: 336s

Explanation: energy =I^2RT

Energy=8.4 KJ=8400J

I=0.5A

R=100ohm

By putting the values we get

8400=(0.5)^2(100)T

T=8400/(0.5)^2(100)=336s