Assuming that one used the same heating coil and that its resistance did not change, by...
Assuming that one used the same heating coil and that its resistance did not change, by what factor (in percentage) would the power be increased if the voltage were increased by 55 %? Give your answer as a whole number.
Homework Answers
We now that the power is given by
Now,
The coil and the resistance will remain same but the voltage is increase by 55%.
Let assume that the previous voltage is 100Volts
therefore the new voltage is = 155 volts
thus the Final power becomes
eq- 1
and the initial power is
eq-2
by dividing equation 1 by eq -2 we get
or
To find the % increase in the initial power, we just have to multiply both sides with 100
which gives us
Hence increase in power is
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