2 identical heater wires are first connected in series and then in parallel. The ratio of heat produced in the 2 cases is :
a) 2:1 b)1:2 c)4:1 d)1:4 @@@@@@@@@@@@@
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4
Answer:
In parallel, the equivalent resistance = 2RR2. Therefore, E2 = I2(2RR2)t=2I2Rt. E1/E2 = 1/4. Hence, the ratio is 1:4.
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Answer:
d) 1 : 4
Explanation:
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