an electric iron of resistance 20 ohms takes a current of 5 ampere calculate the heat developed in 30 seconds
Answers
Answered by
4
Hey there!
Given,
Resistance = R = 20 ohms
Current = i = 5 ampere
Time = t = 30 sec
We know,
E = i^2 Rt
= 5^2 × 20 × 30
= 25 × 20 × 30
= 500 × 30
= 15000 J
= 15 kJ
Hope It Helps You!
Given,
Resistance = R = 20 ohms
Current = i = 5 ampere
Time = t = 30 sec
We know,
E = i^2 Rt
= 5^2 × 20 × 30
= 25 × 20 × 30
= 500 × 30
= 15000 J
= 15 kJ
Hope It Helps You!
Answered by
0
Given :-
R = 20 Ω
I = 5 A
t = 30 s
H = I^2Rt
= (5)^2×20×30
= 15000 J
= 1.5 × 10^4 J
Similar questions