Click to start!
10Click to start!
10Click to start!
10Click to start!
10Electromagnetic induction was discovered in 1831.
A voltage is induced only when magnetic flux changes.
Slower motion of a magnet induces greater voltage.
A generator produces e.m.f. by rotating a coil in a magnetic field.
Faraday’s Law states that e.m.f. is inversely proportional to rate of change of flux.
Mechanical energy can be converted into electrical energy using electromagnetic induction.
Increasing the number of turns of the coil increases induced voltage.
Induced e.m.f. occurs even if there is no relative motion between the coil and the magnet.
The strength of the magnetic field affects the magnitude of induced voltage.
Faraday’s Law is the working principle behind electric generators.
Percentage: 0%
Who discovered electromagnetic induction?
Electromagnetic induction occurs when:
What happens when a bar magnet is quickly moved in and out of a solenoid?
According to Faraday’s Law, e.m.f. is directly proportional to:
Increasing the number of turns in a coil will:
Faster movement of a magnet through a coil results in:
A generator works on the principle of:
The energy conversion in electromagnetic induction is:
Answer: c The induced e.m.f. lasts:
A coil rotated faster in a magnetic field will:
The process of generating voltage in a conductor when magnetic flux changes is called ______ induction.
The phenomenon was discovered by ______ Faraday in 1831.
A voltage generated in a conductor due to changing magnetic flux is also called ______ force (e.m.f.).
The induced e.m.f. depends on the strength of the magnetic field and the ______ of turns of the coil.
Moving a magnet in and out of a coil changes the ______ flux linked with the coil.
Faster motion of the magnet or coil induces a ______ voltage.
The induced e.m.f. lasts as long as the ______ in magnetic flux continues.
Electromagnetic induction converts ______ energy into electrical energy.
Rotating a coil in a magnetic field is the working principle of a ______.
According to Faraday’s Law, the magnitude of e.m.f. is directly proportional to the rate of ______ of magnetic flux.