The split ring in the electric motor is a commutator. The commutator reverses the direction of current flowing through the coil after each half rotation of the coil. Due to this direction of current getting reverse, the coil continues to rotate in the same direction.
The split ring in the electric motor is a commutator. The commutator reverses the direction of current flowing through the coil after each half rotation of the coil. Due to this direction of current getting reverse, the coil continues to rotate in the same direction.
The different ways to induce current in a coil are as following: a. If a magnet is moved relative to a coil, then an electric current is induced in the coil. b. If a coil is moved rapidly between the two poles of a horse-shoe magnet, then an electric current is induced in the coil.
The different ways to induce current in a coil are as following:
a. If a magnet is moved relative to a coil, then an electric current is induced in the coil.
b. If a coil is moved rapidly between the two poles of a horse-shoe magnet, then an electric current is induced in the coil.
(c) When a rectangular coil of copper is rotated in a magnetic field, the direction of the induced current in the coil changes once in each half revolution. Therefore, the direction of current in the coil remains the same.
(c) When a rectangular coil of copper is rotated in a magnetic field, the direction of the induced current in the coil changes once in each half revolution. Therefore, the direction of current in the coil remains the same.
Two safety measures commonly used in electric circuits and appliances are as follows: i. Electric fuse. It prevents the flow of excessive current through the circuit. When the current passing through the wire exceeds the maximum limit of the fuse element, the fuse melts to stop the flow of current tRead more
Two safety measures commonly used in electric circuits and appliances are as follows:
i. Electric fuse. It prevents the flow of excessive current through the circuit. When the current passing through the wire exceeds the maximum limit of the fuse element, the fuse melts to stop the flow of current through that circuit, hence protecting the appliances connected to the circuit.
ii. Earthing is a must to prevent electric shocks. Any leakage of current in an electric appliance is transferred to the ground and people using the appliance do not get the shock.
We can calculate current drawn by electric oven is Given - Power = 2kW = 2000 W Potential difference of 220 W by applying the formula P = VI By putting the value , I=2000/220= 9.09A
We can calculate current drawn by electric oven is
Given – Power = 2kW = 2000 W
Potential difference of 220 W by applying the formula P = VI
The precautions that should be taken to avoid the overloading of domestic circuits are as follows: a. Different appliances should not be used at the same time. b. Different appliances should not be connected to a single socket. c. Fuse should be connected in the circuit. d. Faulty appliances shouldRead more
The precautions that should be taken to avoid the overloading of domestic circuits are as follows:
a. Different appliances should not be used at the same time.
b. Different appliances should not be connected to a single socket.
c. Fuse should be connected in the circuit.
d. Faulty appliances should not be connected in the circuit.
What is the role of the split ring in an electric motor?
The split ring in the electric motor is a commutator. The commutator reverses the direction of current flowing through the coil after each half rotation of the coil. Due to this direction of current getting reverse, the coil continues to rotate in the same direction.
The split ring in the electric motor is a commutator. The commutator reverses the direction of current flowing through the coil after each half rotation of the coil. Due to this direction of current getting reverse, the coil continues to rotate in the same direction.
See lessExplain different ways to induce current in a coil.
The different ways to induce current in a coil are as following: a. If a magnet is moved relative to a coil, then an electric current is induced in the coil. b. If a coil is moved rapidly between the two poles of a horse-shoe magnet, then an electric current is induced in the coil.
The different ways to induce current in a coil are as following:
a. If a magnet is moved relative to a coil, then an electric current is induced in the coil.
b. If a coil is moved rapidly between the two poles of a horse-shoe magnet, then an electric current is induced in the coil.
See lessState the principle of an electric generator.
The principle of an electric generator is electromagnetic induction. It generates electricity by rotating a coil applied in a magnetic field.
The principle of an electric generator is electromagnetic induction. It generates electricity by rotating a coil applied in a magnetic field.
See lessName some sources of direct current.
DC generator is a source of direct current.
DC generator is a source of direct current.
See lessWhich sources produce alternating current?
AC generators, power plants are sources that produce alternating current.
AC generators, power plants are sources that produce alternating current.
See lessChoose the correct option. A rectangular coil of copper wires is rotated in a magnetic field. The direction of the induced current changes once in each
(c) When a rectangular coil of copper is rotated in a magnetic field, the direction of the induced current in the coil changes once in each half revolution. Therefore, the direction of current in the coil remains the same.
(c) When a rectangular coil of copper is rotated in a magnetic field, the direction of the induced current in the coil changes once in each half revolution. Therefore, the direction of current in the coil remains the same.
See lessName two safety measures commonly used in electric circuits and appliances.
Two safety measures commonly used in electric circuits and appliances are as follows: i. Electric fuse. It prevents the flow of excessive current through the circuit. When the current passing through the wire exceeds the maximum limit of the fuse element, the fuse melts to stop the flow of current tRead more
Two safety measures commonly used in electric circuits and appliances are as follows:
i. Electric fuse. It prevents the flow of excessive current through the circuit. When the current passing through the wire exceeds the maximum limit of the fuse element, the fuse melts to stop the flow of current through that circuit, hence protecting the appliances connected to the circuit.
ii. Earthing is a must to prevent electric shocks. Any leakage of current in an electric appliance is transferred to the ground and people using the appliance do not get the shock.
See lessAn electric oven of 2 kW power rating is operated in a domestic electric circuit (220 V) that has a current rating of 5 A. What result do you expect? Explain.
We can calculate current drawn by electric oven is Given - Power = 2kW = 2000 W Potential difference of 220 W by applying the formula P = VI By putting the value , I=2000/220= 9.09A
We can calculate current drawn by electric oven is
Given – Power = 2kW = 2000 W
Potential difference of 220 W by applying the formula P = VI
By putting the value ,
I=2000/220= 9.09A
See lessWhat precaution should be taken to avoid the overloading of domestic electric circuits?
The precautions that should be taken to avoid the overloading of domestic circuits are as follows: a. Different appliances should not be used at the same time. b. Different appliances should not be connected to a single socket. c. Fuse should be connected in the circuit. d. Faulty appliances shouldRead more
The precautions that should be taken to avoid the overloading of domestic circuits are as follows:
a. Different appliances should not be used at the same time.
b. Different appliances should not be connected to a single socket.
c. Fuse should be connected in the circuit.
d. Faulty appliances should not be connected in the circuit.
See lessA Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers, but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as
(c) TtWW
(c) TtWW
See less