The coil of the heater is cut into two equal halves and only one of them is used in the heater. The ratio of the
heat produced by the original coil to the halved coil is
A) 2 : 1 B) 1 : 2 C) 4 : 1 D) 1 : 4
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Answer:
a 2:1 that is why bcuz when the wire is in it's full size it's current flow at full speed and when wire is halved then current is also halved so when wire is full Curren over there is in ratio of 2 and when it is halved it becomes in ratio of 1
that's all
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