Which of the following devices uses the principle of electromagnetic induction?
Practice Questions
Q1
Which of the following devices uses the principle of electromagnetic induction? (2022)
Transformer
Resistor
Capacitor
Diode
Questions & Step-by-Step Solutions
Which of the following devices uses the principle of electromagnetic induction? (2022)
Step 1: Understand what electromagnetic induction is. It is the process of generating electric current in a conductor by changing the magnetic field around it.
Step 2: Identify devices that use this principle. A transformer is a device that transfers electrical energy between circuits using electromagnetic induction.
Step 3: Recognize that in a transformer, when an alternating current flows through one coil, it creates a changing magnetic field that induces a current in another coil.
Step 4: Conclude that since a transformer operates based on electromagnetic induction, it is the correct answer to the question.
