Science

A visually engaging illustration showing magnetic field lines, solenoids, and electricity in action, with a backdrop of a classroom setting or scientific laboratory.

Explore the World of Magnetism and Current

Test your knowledge on the principles of magnetism and electricity with our engaging quiz! This quiz covers various topics related to magnetic fields, electromagnets, and the basics of electric circuits.

Whether you're a student looking to reinforce your learning or simply a curious mind, this quiz is designed for you. Get ready to:

Challenge your understanding of magnetic fields.
Learn about current flow and its safety measures.
Discover the historical figures behind electromagnetic discoveries.

21 Questions5 MinutesCreated by MagneticMind204

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Q1 :-The magnetic field lines always begin from

N-pole and end on S-pole.

S-pole and end on N-pole.

Start from the middle and end at N-pole.

Start from the middle and end at S-pole.

Q2:-Magnetic lines of force inside current carrying solenoid are

Perpendicular to axis.

Along the axis and are parallel to each other.

Parallel inside the solenoid and circular at the ends.

Circular.

Q3:-A soft iron bar is introduced inside a current carrying solenoid.The magnetic field inside the solenoid

Will become zero.

Will increase.

Will decrease.

Will remain unaffected

Q4:- What should be the core of an electromagnet?

Soft iron

Hard iron

Rusted iron

None of above

Q5 :-Which device produces the electric current?

Generator

Galvanometer

Ammeter

Motor

Q6:-The most important safety method used for protecting home appliances from short circuiting or overloading is by

Earthing

Use of fuse

Use of stabilizers

Use of electric meter

Q7:-The strength of magnetic field inside a long current carrying straight solenoid is

More at the ends than at the centre

Minimum in the middle

Same at all points

Found to increase from one end to the other

Q8 :-In India the potential difference between live wire and neutral wire is

240 V

250 V

280 V

220 V.

Q9 :-The best material to make permanent magnets is

Aluminium

Soft iron

Copper

Alnico

Q10:-The north pole of Earth’s magnet is in the:

Geographical South

Geographical East

Geographical West

Geographical North

Q11 :- An electric fuse is used to prevent: i).Short circuit ii) Overload

Only A

Only B

Both A and B

None of these

Q12 :- At the time of short circuit, the current in the circuit:

Reduces substantially

Does not change

Increases heavily

Varies continuously

Q13 :-A DC generator is based on the principle of:

Electrochemical induction

Electromagnetic induction

Magnetic effect of current

Heating effect of current

Q14 :-The magnetic effect of current was discovered by:

Maxwell

Fleming

Oersted

Faraday

Q15 :-The magnetic field lines:

Intersect at right angles to one another

Intersect at an angle of 450 to each other

Do not cross one another

Cross at an angle of 600

Q16:An induced current is produced when a magnet is moved into a coil. The magnitude of induced current does not depend on:

The speed with which the magnet is moved

The number of turns of the coil

The resistivity of the wire of the coil

The strength of the magnet

Q17 :-Circuit Breaker Device which can be used in place of fuse in domestic electric wiring is called:

CBD

DCB

MCD

MCB

Q18 :-The shape of the earth's magnetic field resembles that of an imaginary:

U-shaped magnet

Straight conductor carrying current

Current-carrying circular coil

Bar magnet

Q19 :- Small current in a circuit is detected by

Galvanometer

Solenoid

Voltmeter

Fleming’s left hand rule

Q20 :-We can induce the current in a coil by

Moving the coil in a magnetic field

By changing the magnetic field around it

By changing the orientation of the coil in the magnetic field

All of above

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