Science, asked by anu277, 1 year ago

a heater coil is cut into two equal parts and only one part is now used in the heater then the heat generated will now be

Answers

Answered by 123pupu5

same heat will b produced ,i think so

anu277: but the is given double

anu277: i mean answer is given double

123pupu5: but how ,

anu277: i think we should use the relation V2/R then we knw the formula of resistance and then we get...may be

anu277: in place of current in formula of heat

Answered by Anonymous

A heater coil is cut into three equal parts and only one part is now used in the heater. The heat generated will be

A)

same

B)

one third

C)

one sixth

D)

thrice

Well done! Correct AnswerView SolutionsAnswer:DSolution:

H = I2Rt

Now, new resistance is.

So, heat generated will be thrice.

why have we not shown the proportioality with h=i2rtthen the answer would have been 1/3 times

anu277: but ans is double

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