MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Circular Kinematics

A uniform mag...

Question

A uniform magnetic field is at right angles to the direction of motion of protons. As a result the protons describes a circular path of radius $2.5 c m$ . If the speed of the protons is doubled, then the radius of the circular path will be

A

0.5 c m

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

B

2.5 c m

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

C

5.0 c m

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

D

7.5 c m

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

Open in App

Solution

The correct option is C $5.0 c m$
$R = \frac{m v}{B q}$
$R$ is proportional to $v$
if $V$ is doubled, $R$ is also doubled.

Suggest Corrections

thumbs-up

0

Similar questions

Q. A uniform magnetic field acts right angles to the direction of motion of electrons.As a result, the electron moves in a circular path of radius 2 cm, if the speed of electrons is doubled, then the radius of the circular path will be.

Q. A proton enters a uniform magnetic field with a path perpendicular to the field lines and moves in a circular path of radius

R

. An electron enters the same magnetic field at the same speed in a path perpendicular to the field.
Compared to the protons path, the radius of the electrons circular path is:

Q. A proton, a deutron and an

α -

particle are accelerated through the same potential difference and then they enter a uniform normal magnetic field. If the radius of circular path of proton is

8 c m

then the radius of circular path of deutron will be

α

-particle describes a circular path of radius

r

in a magnetic field

B

. The radius of the circular path described by the proton of same energy in the same magnetic field is :

Q. An electron and a proton enters into a region of uniform magnetic field at right angles to the field with the same kinetic energy. They describe circular paths of radius

r_{e}

r_{p}

respectively. then-

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Charge Motion in a Magnetic Field

PHYSICS

Watch in App

explore_more_icon

Explore more

Circular Kinematics

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon