immersion

The phenomenon of inducing a voltage by changing the magnetic field around a conductor is called __________.

• electromagnetic induction

• Faraday’s induction

• generated voltage

• transformer induction

By accelerating the magnet inside the coil, the current in it ________

• increases

• decreases

• remains constant

• reverses

What is the SI unit for EMF?

• Farad

• Ohm

• EMF

• Volt

EMF can be induced in a circuit EXCEPT:

• changing magnetic flux density

• changing the area of the circuit

• changing the angle

• changing the polarity

As per Faraday's laws of electromagnetic induction, increasing the number of loops will______

• strengthen the induced current

• increase induced voltage

• strengthen the induced voltage

• decrease the induced current

What is the SI unit of Magnetic Flux?

• Henry

• Weber

• W/s

• Tesla

At the South Pole, the Earth’s magnetic field is directed upwards. If a plane is flying over the South Pole, which wing will have the higher potential?

• The left wing

• The right wing

• Both wings have the same potential

• None

The Law that states that the direction of an induced current is such that its own magnetic field opposes the original change in magnetic flux that induced the current.

• Law of conservation of energy

• Faraday’s Law

• Lenz’s Law

• all of the above

The positive and negative terminals of direct current have

• no polarity.

• fixed polarity.

• variable polarity.

• negative polarity always

Which circuit contain both capacitor and an inductor?

• RC Circuit

• RL Circuit

• LC Circuit

• RT Circuit