CameraIcon

SearchIcon

MyQuestionIcon

2

You visited us 2 times! Enjoying our articles? Unlock Full Access!

Electromagnets

What must hap...

Question

What must happen for an electromagnet to have a magnetic field?

A

It must be heated.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

It must be touching another magnet.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

C

It must be lined up with earth's magnetic field.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

D

It must be connected to an electrical source.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D It must be connected to an electrical source.
Electromagnets are temporary magnets that have the property of a magnetic only when they are connected to an electrical source.

Suggest Corrections

thumbs-up

0

Similar questions

Q. If a charged particle kept at rest experiences an electromagnetic force,
(a) the electric field must not be zero
(b) the magnetic field must not be zero
(c) the electric field may or may not be zero
(d) the magnetic field may or may not be zero

Q. A charged particle is creating magnetic field, It must be:

Q. If a charged particle at rest experiences no electromagnetic force,
(a) the electric field must be zero
(b) the magnetic field must be zero
(c) the electric field may or may not be zero
(d) the magnetic field may or may not be zero

Q. If a charged particle moves unaccelerated in a region containing electric and magnetic fields,
(a)

\vec{E}

must be perpendicular to

\vec{B}

\vec{v}

must be perpendicular to

\vec{E}

\vec{v}

must be perpendicular to

\vec{B}

(d) E must be equal to vB

Q. If a charged particle projected in a gravity-free room deflects,
(a) there must be an electric field
(b) there must be a magnetic field
(c) both fields cannot be zero
(d) both fields can be non-zero

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Electro Magnet

PHYSICS

Watch in App

explore_more_icon

Explore more

Standard VII Physics

Join BYJU'S Learning Program

CrossIcon