How much do you know about Electromagnetism?

Hello everyone, I'm Sankhadeep. Here you will have to answer a set of 15 questions about electromagnetism which will test your knowledge about electromagnetism.

You need to take a good preparation before taking this quiz because this is going to be a hard quiz. So I bet you all are ready before taking this quiz. So, let's begin.....

Created by: Sankhadeep Dey

Electromagnetism is the branch of science that deals with
- The magnetic effects of electric current
- The electrical effects of magnetic current
- None of the above
The polarity of an electromagnet can be identified by
- Anti-clock Rule
- Clock Rule
- None of the above
Lenz's law states that
- Increase in the number of turns in the coil increases the induced emf
- When the magnetic flux or the magnetic field changes with time, the electromotive force is produced
- The polarity of induced emf is such that it tends to produce a current which opposes the change in magnetic flux that produced it.
- None of the above
Faraday's second law of electromagnetic induction states that
- The induced emf in a coil is equal to the rate of change of flux linkage
- Whenever a conductor is placed in a varying magnetic field, an electromotive force is induced
- Changing magnetic fields can cause current to flow in wires
- None of the above
A measurement of the energy that causes current to flow through a circuit
- Electromagnetic Force
- Electrostatic Force
- Electroforce
- Electromotive Force
What does negative sign indicate in Faraday’s law of electromagnetic induction formula?
- The direction of the induced emf and change in the direction of magnetic fields have opposite signs.
- The rate of change of flux linkage
- The magnetization in a paramagnetic material is directly proportional to the applied magnetic field.
The strength of an electromagnet is
- inversely proportional to the number of turns per unit length of the coil
- directly proportional to the number of turns per unit length of the coil
- inversely proportional to the amount of current flowing through the coil
- directly proportional to the amount of current flowing through the coil
- All of the above
- Both (1) and (3)
- Both (2) and (4)
- None of the above
The current produced during electromagnetic induction is known as
- Direct Current
- Diffused Current
- Magnetic Current
- Electromagnetic Current
- Induced Current
- Alternating current
- Pulsed current
Does electromagnetism work under water?
- Yes
- No
Who discovered the relation between electricity and magnetism?
- Hans Christian Oersted
- Michael Faraday
- Heinrich Friedrich Lenz
A solenoid carrying current behaves like an electromagnet. To determine poles of the solenoid which rule is helpful?
- Right Hand Thumb Rule
- Fleming's Left Hand Rule
- Curie’s Law
We are rotating a 1 m long metallic rod with an angular frequency of 400 red s^-1 with an axis normal to the rod passing through its one end. And on to the other end of the rod, it is connected with a circular metallic ring. There exist a uniform magnetic field of 0.5 T which is parallel to the axis everywhere. Find out the emf induced between the centre and the ring.
- 100 V
- 400 V
- 200 V
- None of the above
A long solenoid with 15 turns per cm has a small loop of area 2.0 cm^2 placed inside the solenoid normal to its axis. If the current carried by the solenoid changes steadily from 2.0 A to 4.0 A in 0.1 s, what is the induced emf in the loop while the current is changing?
- 7.45×10^−6 V
- 7.54×10^−6 V
The induced voltage across a coil with 250 turns that is located in a magnetic field that is changing at a rate of 8 Wb/s is
- 1,000 V
- 31.25 V
- 2,000 V
- 3,125 V
When the current through the coil of an electromagnet reverses, the
- direction of the magnetic field remains unchanged
- direction of the magnetic field reverses
- magnetic field collapses
- magnetic field expands

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Quiz topic: How much do I know about Electromagnetism?

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