Question

Problem 36

Answer 1

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),