Current Electricity and Electrical InstrumentHard
Question
In the circuit shown in figure the heat produced in the 5 Ω resistor due to the current flowing through it is 10 cal/s.
The heat generated in the 4Ω resisor is
The heat generated in the 4Ω resisor is
Options
A.1 cal/s
B.2 cal/s
C.3 cal/s
D.4 cal/s
Solution
Sice, resistance in upper branch of the circuit is twice the resistance in lower branch. Hence, current there will be half
Now, P4 = (i/2)2(4)
P5 = (i)2(5)
or
∴
=
∴ So correct option is (b).
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