what resistance would have to be added in parallel with a 80ohm electric hair dryer to reduce the equivalent resistance to 16 ohm
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answer is 20 ohms
Explanation:
x is parallel with a 80 ohms and its equivalent resistance ia 16 ohms
that equal to
=(X x 80) / (X+80) =16
=80x=16x80+16x
64x=16x80
x=20ohms
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