GEOLOGY

EARTH SCIENCE

MAGNETISM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When current running through a wire is placed in the field of a permanent magnet,
A
solar energy is transformed into light
B
electrical energy is transformed into sound
C
solar energy is transformed into mechanical energy
D
electrical energy is transformed into mechanical energy
Explanation: 

Detailed explanation-1: -If a coil of wire is placed in a changing magnetic field, a current will be induced in the wire. This current flows because something is producing an electric field that forces the charges around the wire.

Detailed explanation-2: -When an electric current flows through a wire, the wire gets heated ( heating effect of current) and a magnetic field is produced around it ( magnetic effect of current).

Detailed explanation-3: -Energy Transformation – Energy can be transformed from one form to another. When a wire with a current is placed in a magnetic field, electrical energy is transformed into mechanical energy. The transformation happens when the magnetic field produced by the current causes the wire to move.

Detailed explanation-4: -Motors consist of loops of wire in a magnetic field. When current is passed through the loops, the magnetic field exerts a torque on the loops, which rotates a shaft. Electrical energy is converted to mechanical work in the process.

There is 1 question to complete.