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· started a discussion

· 1 Months ago

in options its answer shows B it is 19
but in solution it is 8.6

which one is correct?

Question:

A 500 W heating unit is designed to operate from a 115 volt line. If the line voltage drops to 99 volt, the percentage drop in heat output will be:

Options:
A)

10.20%

B)

19%

C)

8.6%

D)

7.6%

Solution:

Ans: (b) 8.6%

  

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