3. An electric iron a, resistance 20 Ω takes a current of 5 A Calculate the
heat developed in 30 s.
Answers
Answered by
2
Answer:
heat = i²rt
=> heat = 5²×20×30
=> heat = 25 × 600
= 15000 joules....
Answered by
0
Answer:
1.5*10^-3 Joule
Explanation:
H=I^2rt
H=[5]^2*20*30
=25*20*30
=1.5*10^-3 Joule
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