Question -
Answer -
1. An electric motor converts mechanical energy into electrical energy.
2. An electric generator works on the principle of electromagnetic induction.
3. The field at the center of a long circular coil carrying current will be parallel straight lines.
4. A wire with a green insulation is usually the live wire of an electric supply.
Solution:
a. False
An electric motor converts electrical energy into mechanical energy.
b. True
An electric generator is a device that generates electricity by rotating a coil in a magnetic field.
c. True
A long circular coil is a solenoid. The magnetic field lines inside a solenoid are parallel straight lines.
d. False
Live wires have red insulation cover while the earth wire has green insulation.