(b) True A generator is a device that generates electricity by rotating a coil in a magnetic field. It works on the principle of electromagnetic induction.
(b) True
A generator is a device that generates electricity by rotating a coil in a magnetic field. It works on the principle of electromagnetic induction.
State whether true or false A wire with a green insulation is usually the live wire of an electric supply.
(d) False Red insulation covers the live wire whereas green colour.
(d) False
Red insulation covers the live wire whereas green colour.
See lessState whether true or false The field at the centre of a long circular coil carrying current will be parallel straight lines.
(c) True A long circular coil is a long solenoid. The magnetic field lines inside the solenoid are parallel lines.
(c) True
A long circular coil is a long solenoid. The magnetic field lines inside the solenoid are parallel lines.
See lessState whether true or false An electric generator works on the principle of electromagnetic induction.
(b) True A generator is a device that generates electricity by rotating a coil in a magnetic field. It works on the principle of electromagnetic induction.
(b) True
A generator is a device that generates electricity by rotating a coil in a magnetic field. It works on the principle of electromagnetic induction.
See lessState whether true or false An electric motor converts mechanical energy into electrical energy.
(a) False As an electric motor converts electrical energy into mechanical energy.
(a) False
As an electric motor converts electrical energy into mechanical energy.
See lessList two methods of producing magnetic fields.
Three sources of magnetic fields are: a. Electromagnets b. Current-carrying conductors c. Permanent magnets
Three sources of magnetic fields are:
a. Electromagnets
b. Current-carrying conductors
c. Permanent magnets
See less