Practice portal › Current Electricity › Cells, EMF and Internal Resistance

A resistor is connected to a battery of 12 V emf and internal resistance 2 Ω. If the current in the circuit is 0.6 A, the terminal voltage of the battery is:

Asked in NEET 2026 · Terminal voltage and internal resistance

• (1) 10.8 V
• (2) 1.2 V
• (3) 12 V
• (4) 10 V

Step-by-step solution

Why the other options are wrong

• (2) This is the drop inside the battery, Ir=0.6×2, not the voltage at its terminals.
• (3) This is the emf; with current flowing, part of it is lost inside the battery.
• (4) No single slip gives 10 V; it would need a 2 V drop inside the battery, that is 1 A through 2 Ω.

Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.