Student Login

Home›Chapters›Current Electricity PYQs›Cells: EMF, Internal Resistance & Combinations›Question 54

NEET 1992 (AIPMT) · Cells: EMF, Internal Resistance & Combinations

Cells: EMF, Internal Resistance & Combinations question from NEET 1992 (AIPMT)

Q54NEET 1992 · AIPMTEasy

Cells: EMF, Internal Resistance & Combinations

A battery of e.m.f $10\text{ V}$ and internal resistance $0.5\ \Omega$ is connected across a variable resistance $R$ . The value of $R$ for which the power delivered in it is maximum is given by

Show answer and solution

Answer: (a)

Maximum power transfer theorem: power in $R$ is maximum when $R = r$ .
$R = 0.5\ \Omega$ . So the answer is (a).

Report a mistake

More questions on Cells: EMF, Internal Resistance & Combinations

Two identical batteries each of e.m.f 2 V and internal resistance 1 Ω are available to…NEET 1990 (AIPMT)
A resistor is connected to a battery of 12 V emf and internal resistance 2 Ω. If the…NEET 2026
When an external resistance of 5 Ω is connected across terminals of a cell, a current of…JEE Main 2026 (5 Apr, Shift 2)
A battery with EMF E and internal resistance r is connected across a resistance R. The…JEE Main 2026 (21 Jan, Shift 2)
In an electric circuit shown, each cell has e.m.f. 2 V and internal resistance 1 Ω. The…MHT CET 2026 (15 May, Shift 2)
For the two cells having same EMF E and internal resistance r, the current passing…JEE Main 2026 (28 Jan, Shift 1)
Two cells of emfs 1 V and 2 V and internal resistance 2 Ω and 1 Ω, respectively connected…JEE Main 2026 (6 Apr, Shift 2)
Two cells of emfs 1 V and 2 V and internal resistances 2 Ω and 1 Ω, respectively, are…JEE Main 2025 (3 Apr, Shift 2)