Understanding Electromagnetic Induction

What components are used to demonstrate electromagnetic induction?

• Capacitor, inductor, and diode

• Solar cell, LED, and resistor

• Bar magnet, coil, and galvanometer

• Battery, wire, and bulb

What does the movement of the magnet through the coil demonstrate?

• Resistance change

• Static electricity

• Voltage drop

• Current induction

What happens to the galvanometer when the magnet is stationary?

• It shows maximum deflection

• It remains constant at a high deflection

• It returns to zero

• It increases gradually

What is responsible for inducing current in the conductor?

• Electrical resistance of the coil

• Constant magnetic field

• Changing magnetic field

• Heat generated by the coil

What is the phenomenon called when a changing magnetic field induces current?

• Inductive reactance

• Magnetic flux

• Electromagnetic induction

• Electromagnetic interference