State whether the following statements are true or false. 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.
ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
Solution:
- False
An electric motor converts electrical energy into mechanical energy.
- True
An electric generator is a device that generates electricity by rotating a coil in a magnetic field.
- True
A long circular coil is a solenoid. The magnetic field lines inside a solenoid are parallel straight lines.
- False
Live wires have red insulation cover, while the earth wire has green insulation.