Question

A heating coil of resistance 10ῼ takes a current of 2 Ampere. The heat developed by it in 5 seconds is A. 1000 Joules B. 200 Joules C. 100 Joules D. 2200 Joules​

Answer 1

Answer:

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ans 200

Answer 2

Given : A heating coil of resistance 10 volt takes a current of 2 ampere,

To Find :  the heat developed by is in 5 second s is

A. 1000 Joules

B. 200 Joules

C. 100 Joules

D. 2200 Joules​

Solution:

Resistance is 10 Ω

R = 10  Ω

I  = 2A  current

t  = 5 sec  time

Heat  = I²Rt

= ( 2)² * 10 * 5

= 200 Joule

200 Joule is correct answer

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