Calculate the amount of heat generated in an external load of resistance  8Ω if an alternating current of peak value 5A is passed through for 100s.

a

20,000J

b

10,000J

c

5,000J

d

4,000J

e

200J

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Correct Option
b

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Discussions (15)

Ibrahim fatimoh
9 years ago

heat generated(Q) = energy(E)

E=I^2Rt

E=5^2×8×100

E=20000j=Q



* it is 8ohms not 89

ayeni deborah
11 years ago

i luv this

Eniola Fadeyibi
9 years ago

Can Anybody Explain This?

Rajibasit20
1 year ago

No answer

akosah80
3 years ago

Calculate the amount of heat generated in an external load of resistance 89 if an alternating current of peak value 5A is passed through for 100s. (The resistance is 80)

etumnu richard
10 years ago

the answer in b and not a

busayo2
9 years ago

pls someone shd explain dis oh ....plss

jasmyne456
9 years ago

pls can someone explain this.... i need this badly....

Chysomeje
10 months ago

you can't use peak current to calculate it, it's Irms . so you'll calculate Irms b4 solving. so and is b

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