An electric iron of resistance 20ohm takes an current of 5a. Calculate the heat develop in 30 sec
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H=i^2rt
h = 5^2 * 20 * 30
h = 15000 j
h = 5^2 * 20 * 30
h = 15000 j
Answered by
4
Answer:
Given, resistance ( R) = 20ohm
current (I) = 5A
time(T) = 30s
H = I² × R × T
=> H = 5² × 20 × 30
=> H = 25 × 600
=> H = 15000 joules
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