EVERYDAY SCIENCE

SCIENCE

PHYSICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What device creates a magnetic field from an electric current?
A
a diode
B
a transmitter
C
a radio
D
a generator
Explanation: 

Detailed explanation-1: -The motor is a device that converts electrical energy into mechanical energy. The principle of motor or electric motor is on the current-carrying conductor which produces magnetic fields around it.

Detailed explanation-2: -An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. Electromagnets usually consist of wire wound into a coil.

Detailed explanation-3: -Electric motors generate magnetic fields with electric current through a coil. The magnetic field then causes a force with a magnet that causes movement or spinning that runs the motor.

Detailed explanation-4: -The field is produced by direct current in field coils or by permanent magnets on the stator. The output, or armature, windings are placed in slots in the cylindrical iron rotor.

Detailed explanation-5: -The generator/dynamo is made up of stationary magnets (stator) which create a powerful magnetic field, and a rotating magnet (rotor) which distorts and cuts through the magnetic lines of flux of the stator.

There is 1 question to complete.