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20 Nov 2021
Given information
There is a circuit with two batteries in parallel along with a resistor R. It is required to find the voltage drop across the resistor.
Step-by-step explanation
Step 1.
According to Kirchhoff's loop rule, the potential drop across all the circuit elements in a closed loop is zero.
Let us consider the current passing through the 2V battery is and the same for the 3V battery is .
Now applying the loop rule in the loop with battery , 2V
(i)
Applying the loop rule in the loop with battery , 3V
(ii)
Substituting equation (i) in equation (ii),
Putting the value of in equation (i),
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