Question

A battery of e.m.f. 3 volt and internal resistance 1.0 ohm is connected in series with copper voltameter. The current flowing in the circuit is 1.5 amperes. The resistance of voltameter will be

• A. Zero
• B. 1.0 ohm
• C. 1.5 ohm
• D. 2.0 ohm

Answer 1

Answer: (B)

1.0 ohm

Answer 2

$3 = 1.5(1 + r)$ ⇒ r = 1Ω