Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 17

EASY

JEE Main

IMPORTANT

Earn 100

Select the correct statement for a charged particle moving through a magnetic field perpendicular to its direction.

35.71% studentsanswered this correctly

Important Questions on Magnetic Effects of Current and Magnetism

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 18

A charged particle moves along a circle under the action of possible constant electric and magnetic fields. Which of the following are possible?

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 19

Two protons whose velocities are in the ratios

4 : 1

move perpendicular to a uniform magnetic field. The ratio of the radii of their paths will be,

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 20

If electron velocity is

(2 \hat{i} + 3 \hat{j})

and it is subjected to a magnetic field

4 \hat{k},

then

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 21

An electron of mass

9 .0 \times 10^{- 31} kg

under the action of a magnetic field moves in a circle of radius

2 cm

at a speed of

3 \times 10^{6} m s^{- 1}

. If a proton of mass

1 .8 \times 10^{- 27} kg

has to move in a circle of same radius and in the same magnetic field, then its speed must be

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 22

An electron is moving along positive

x

-axis. To get it moving in an anticlockwise circular path in

x y

plane, a magnetic field is applied

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 23

A particle of charge

q

moves with a velocity

\vec{v} = a \hat{i}

in a magnetic field

\vec{B} = b \hat{j} + c \hat{k}

where

a, b

and

c

are constants. The magnitude of the force experienced by the particle is,

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 24

The acceleration of an electron at a certain moment in a magnetic field

\vec{B} = (2 \hat{i} + 3 \hat{j} + 4 \hat{k}) T

is

\vec{a} = (x \hat{i} + \hat{j} - \hat{k}) m s^{- 2}

. The value of

x

is :

EASY

JEE Main

IMPORTANT

Physics Crash Course JEE Main>Chapter 15 - Magnetic Effects of Current and Magnetism>Level 1>Q 25

Which particles will have minimum frequency of revolution when projected with the same velocity perpendicular to a magnetic field?