Which of the following devices operates on the principle of electromagnetic indu
Practice Questions
Q1
Which of the following devices operates on the principle of electromagnetic induction? (2019)
Electric motor
Generator
Transformer
All of the above
Questions & Step-by-Step Solutions
Which of the following devices operates on the principle of electromagnetic induction? (2019)
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 the devices listed in the question. Common devices that use electromagnetic induction include generators, transformers, and inductors.
Step 3: Check if each device operates based on the principle of electromagnetic induction. For example, generators convert mechanical energy into electrical energy using this principle.
Step 4: Confirm that all the devices mentioned in the question utilize electromagnetic induction in their operation.
Step 5: Conclude that since all devices listed operate on this principle, the answer is that all of the above devices operate on the principle of electromagnetic induction.
