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).
Create a free account to view solution
View Solution FreeTopic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
A wire of resistance 4Ω is stretched to twice its original length. The resistance of stretched wire would be :-...Find the potential difference between X and Y in volt is : -...Assuming the diodes to be silicon with forward resistance zero, the current-I is the following circuit is :-...In the circuit diagram each resistor of resistance 5Ω. The points A and B are connected to the terminals of a cell ...Choose the correct alternatives...