A proton of mass 1 . 67 × 10 - 27 kg and charge 1 . 6 × 10 - 19 C is projected in x - y plane with a speed of 2 × 10 6 m s - 1 at an angle of 60 ° to the x -axis. If a uniform magnetic field of 0 . 14 T is applied along the y -axis, the path of the proton is

a helix of radius 0 . 07 m and time period 0 . 5 × 10 - 6 s .

a circle of radius 0 . 2 m and time period π × 10 - 7 s .

a circle of radius 0 . 1 m and time period 2 π × 10 - 7 s .

a helix of radius 0 . 14 m and time period 1 . 0 × 10 - 7 s .

a helix of radius 0 . 24 m and time period 0 . 7 × 10 - 7 s .

EASY

JEE Advanced

IMPORTANT

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A positively charged particle falling freely under gravity enters a region having a uniform horizontal magnetic field pointing North to South. The particle will be deflected towards.

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Important Questions on Magnetic Effects of Current

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 19

When a charged particle enters in a uniform magnetic field, its kinetic energy

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 20

A long solenoid carrying a current $I$ is placed with its axis vertical as shown in the figure. A particle of mass $m$ and charge $q$ is released from the top of the solenoid. Its acceleration is $(g$ being acceleration due to gravity $)$

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EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 21

If a charged particle is describing a circle of radius

r

in a magnetic field with a time period

T .

Then,

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 22

A particle of mass $m$ and charge $q$ is released from rest at the origin as shown in the figure. The speed of the particle when it has travelled a distance $d$ along the $z$ -axis is given by

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EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 23

A particle of mass

m

and charge

Q

moving with a velocity

v

enters a region of uniform magnetic field of induction

B

. Then, its path in the region is

MEDIUM

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 24

A beam of protons with a velocity of

4 \times 10^{5} m s^{- 1}

enters a uniform magnetic field of

0.3 T

at an angle of

60 °

to the magnetic field. The radius of helical path taken by proton beam is

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 25

A particle of mass

m

and charge

q

moves with a constant velocity

v

along the positive

x

-direction. It enters a region containing a uniform magnetic field

B

directed along the negative

z

-direction, extending from

x = a

x = b

. The minimum value of

v

required, so that the particle can just enter the region

x > b

EASY

JEE Advanced

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 2>Chapter 3 - Magnetic Effects of Current>Objective Problems [ Level 1 ]>Q 26

A proton of mass

1.67 \times 10^{- 27} kg

and charge

1.6 \times 10^{- 19} C

is projected in

x - y

plane with a speed of

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

at an angle of

60 °

to the

x

-axis. If a uniform magnetic field of

0.14 T

is applied along the

y

-axis, the path of the proton is

A positively charged particle falling freely under gravity enters a region having a uniform horizontal magnetic field pointing North to South. The particle will be deflected towards.

Important Questions on Magnetic Effects of Current

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