A 15 Ω resistor is protected by a fuse that can carry a maximum current of 2.5 A

PHYSICS · Subjective · A Level · Physics · Electricity · Electricity

Problem

A 15 Ω resistor is protected by a fuse that can carry a maximum current of 2.5 A. Determine the highest emf of a battery that can be safely connected across the resistor without blowing the fuse.

Related theory

Ohm's Law
Ohm's Law (Macroscopic)
Ohm's law, V-I graphs and ohmic/non-ohmic conductors
Current Electricity
Ohm's law and V-I graphs
Electricity
Electric Circuits

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