Question

An electric iron of resistance 20 ohms a current of five ampere calculate the heat produce in 30 second

Answer 1

Hey mate!!!!

➡️Given,

R = 20 ohms, I = 5A , t = 30s

Now,

H = i^2 Rt

H = 25× 20× 30

H = 1500J

➡️ Hope it helps you....

Answer 2

Given :-

R = 20 Ω

I = 5 A

t = 30 s

H = I^2Rt

= (5)^2×20×30

= 15000 J

= 1.5 × 10^4 J