Current Electricity Charging Discharging Of Capacitors Question 605
Question: The internal resistances of two cells shown are $ 0.1,\Omega $ and $ 0.3,\Omega $ . If $ R=0.2,\Omega $ , the potential difference across the cell
Options:
A) B will be zero
B) A will be zero
C) A and B will be 2V
D) A will be $ >2V $ and B will be $ <2V $
Show Answer
Answer:
Correct Answer: A
Solution:
Applying Kirchhoff law $ (2+2)=(0.1+0.3+0.2)i $
Therefore $ i=\frac{20}{3}A $ Hence potential difference across A $ =2-0.1\times \frac{20}{3}=\frac{4}{3}V $ (less than 2V) Potential difference across $ B=2-0.3\times \frac{20}{3}=0 $
BETA
