Polarization

Step 1: Understanding the Circuit The given circuit consists of:
- A DC supply voltage

V%20%3D%20100V

- A battery with emf

E%20%3D%2010V

- Internal resistance of the battery

r%20%3D%201%20%5COmega

- An external series resistor

R%20%3D%2017%20%5COmega

Using Ohm's Law, the current flowing through the circuit is given by:

I%20%3D%20%5Cfrac%7BV%20-%20E%7D%7BR%20%2B%20r%7D

Substituting the values:

I%20%3D%20%5Cfrac%7B100V%20-%2010V%7D%7B17%5COmega%20%2B%201%5COmega%7D%20%3D%20%5Cfrac%7B90%7D%7B18%7D%20%3D%205A

Step 2: Finding Terminal Voltage The terminal voltage

V_T

of the battery during charging is given by:

V_T%20%3D%20E%20%2B%20I%20r

Substituting the known values:

V_T%20%3D%2010V%20%2B%20(5A%20%5Ctimes%201%5COmega)%20%3D%2010V%20%2B%205V%20%3D%2015V

Thus, the correct answer is

%5Cmathbf%7B(4)%7D%20%5C%2015V

Chapter Questions
2 MCQs