Question

An ideal transformer provides an output emf whose magnitude is 9 V and frequency 60 Hz, when the amplitude of the input is 180 V. It is connected to a resistive heater with a resistance R = 100 2. What is the equivalent resistance seen by the EMF source on the input side? (1) 40 kΩ (2) 100 Ω (3) 1 k Ω (4) 2 kΩ (5) 800 Ω

Answer 1

The equivalent resistance is described as the location in a parallel or series circuit where the total resistance is measured.

A single resistance is referred to as the equivalent resistance if it can replace a group of resistances while maintaining the same current flow in the circuit. Where the total resistance connected in parallel or series is determined is called the equivalent resistance. The circuit is essentially built in either series or parallel. Electrical resistance demonstrates how much power is required to pass charges or current through your gadgets. Electrochemical cells, thermoelectric devices, solar cells, photodiodes, electrical generators, inductors, transformers, and even Van de Graaff generators are examples of equipment that can produce emf. When magnetic field variations pass through a surface in nature, EMF is produced.

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