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Given below are two statements: Statement-I: The equivalent emf of two non-ideal batteries connected in parallel is smaller than either of the two emfs. Statement-II: The equivalent internal resistance of two nonideal batteries connected in parallel is smaller than the internal resistance of either of the two batteries. In the light of the above statements, choose the correct answer from the options given below.

Asked in JEE Main 22nd Jan 1st Shift 2025 · Combination of cells

• (1) Both statement-I and statement-II are true
• (2) Both statement-I and statement-II are false
• (3) Statement-I is true but statement-II is false
• (4) Statement-I is false but statement-II is true

Step-by-step solution

Why the other options are wrong

• (1) Wrongly accepts statement-I: the parallel emf is a weighted mean and lies between the two emfs.
• (2) Wrongly rejects statement-II: (r₁r₂)/(r₁+r₂) is smaller than both r₁ and r₂.
• (3) Gets both statements the wrong way round.

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