A charged particle moves with constant velocity in a region where no effect of gravity is felt but an electrostatic field E- together with a magnetic field B- may be present- Then which of the following cases are possible-

The correct options are A E≠0,B≠ 0 nbsp; C E= 0,B= 0 nbsp; D E= 0,B≠ 0 nbsp;If a charged particle is moving in a gravity free space without changing its v ...

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

Byju's Answer

Standard XII

Physics

Gravitation vs. Electrostatics

A charged par...

Question

A charged particle moves with constant velocity in a region where no effect of gravity is felt but an electrostatic field $\to E$ together with a magnetic field $\to B$ may be present. Then which of the following cases are possible?

\to E \neq 0, \to B \neq 0

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

\to E \neq 0, \to B = 0

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

\to E = 0, \to B = 0

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

\to E = 0, \to B \neq 0

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

Open in App

Solution

The correct options are
A $\to E \neq 0, \to B \neq 0$
C $\to E = 0, \to B = 0$
D $\to E = 0, \to B \neq 0$
If a charged particle is moving in a gravity-free space without changing its velocity, then three cases possible

(i) Particle can move with constant velocity in any direction, if $\to E = 0, \to B = 0$ .

(ii) If $\to E$ , $\to B$ are having values such that $q E = q v B$ and hence both forces (Force due to magnetic field and force due to electric field) acts in such a way that they cancel each other, in this case also particle can move with uniform velocity.

(iii) If $\to E = 0, \to B \neq 0$ and $\to B$ is such that it acts in the direction of velocity then magnetic force would be zero and hence velocity can remain constant.

Suggest Corrections

Similar questions

Q. A particle of mass m and charge q is thrown from origin at

t = 0

with velocity

2^i + 3^j + 4^k

units in a region with uniform magnetic field

\to B = 2^i

units. After time

t = \frac{π m}{q B}

, an electric field

\to E

is switched on, such that particle moves on a straight line with constant speed.

\to E

may be

Q. A charged particle moves with a constant velocity

(^i +^j) m / s

in a magnetic field

\to B = (2^i + 3^k)

and uniform electric field

\to E = (a^i + b^j + c^k) N / C

, then

(

assuming all quantities in S.I. unit

) :

Q. A positive charge moves with constant velocity to the right through both a magnetic and electrostatic field. Which of the following conditions would allow for this to happen? Ignore effects from the force of gravity.

Q. A force

\to F

acting on an electric charge q in presence of an electromagnetic field, moves the charge parallel to the magnetic field with velocity

\to v

. Then,

\to F

is equal to(where

\to E

and

\to B

are electric field and magnetic field, respectively) ___________.

Q. Electric field and magnetic field in a region of space is given by

\to E = E_{o}^j

and

\to B = B_{o}^j

.A particle of specific charge

α

is released from origin with velocity

\to v = v_{o}^i

.Then path of particle.
Note-

E_{o}, B_{o}

and

v_{o}

are constant values.

Join BYJU'S Learning Program

A charged particle moves with constant velocity in a region where no effect of gravity is felt but an electrostatic field →E together with a magnetic field →B may be present. Then which of the following cases are possible?

A charged particle moves with constant velocity in a region where no effect of gravity is felt but an electrostatic field $\to E$ together with a magnetic field $\to B$ may be present. Then which of the following cases are possible?