A) Half
B) Double
C) Four times
D) One fourth
Correct Answer: C
Solution :
Heating effect is the wattage of the conductor. So, \[H=\frac{{{V}^{2}}}{R}\] If resistance is reduced to four times then \[H'=\frac{{{V}^{2}}}{(R/4)}\]or \[H'=4\left[ \frac{{{V}^{2}}}{R} \right]\] \[\therefore \]\[H'=4H\]You need to login to perform this action.
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