Question
Physics Question on Cells, Emf, Internal Resistance
The internal resistance of a 2.1 V cell which gives a current of 0.2 A through a resistance of 10 Ω is
A
0.2Ω
B
0.5Ω
C
0.8Ω
D
1.0Ω
Answer
0.5Ω
Explanation
Solution
The correct option is (B): 0.5Ω