Which of the following devices uses the principle of electromagnetism? (2019)
Practice Questions
Q1
Which of the following devices uses the principle of electromagnetism? (2019)
Electric motor
Thermometer
Barometer
Hydrometer
Questions & Step-by-Step Solutions
Which of the following devices uses the principle of electromagnetism? (2019)
Step 1: Understand what electromagnetism is. It is the interaction between electric currents and magnetic fields.
Step 2: Identify devices that use electromagnetism. Look for devices that convert electrical energy into motion or mechanical energy.
Step 3: Recognize that an electric motor is a device that uses electromagnetism. It takes electrical energy and turns it into mechanical energy to create motion.
Step 4: Conclude that the electric motor is the correct answer as it operates based on the principles of electromagnetism.
