Question

If in a circuit we have a battery of 5v connected to a resistor of 5Ω. 2 batteries are added of same Potential difference. and polarity the current also increases in the same manner. What are the (I, v) values?

• A. (1, 5); (2, 10); (3, 15)
• B. (1, 5); (1, 10); (1, 15)
• C. (5, 1); (10, 1); (15; 1)
• D. Can't say

Answer 1

The correct option is A

(1, 5); (2, 10); (3, 15)

V = IR
⇒ v = 5v, R = 5Ω
I = 1A
V = 10 v; R = 5Ω
I = 2A
V = 15v; R = 5Ω
I = 3A

As batteries are added continuously the Pd. Increases as polarity is the same.