Moving Charges and Magnetism Test

Result

Moving Charges and Magnetism Test - 37

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

Identify the correct statement from the following

A
Cyclotron frequency is dependent on speed of the charged particle

B
Kinetic energy of charged particle in cyclotron does not depend on its mass

C
Cyclotron frequency does not depend on speed of charged particle

D
Kinetic energy of charged particle in cyclotron is independent of its charge

Solution
Question 2
4 / -1

A charged particle of mass m and charge q describes circular motion of radius r in a uniform magnetic field of strength B. The frequency of revolution is

A

B

C

D

Solution
Question 3
4 / -1

An electron is accelerated by a potential difference of 12000 volts. It then enters a uniform magnetic field of 10^–3 T applied perpendicular to the path of electron. Find the radius of path. Given mass of electron = 9 × 10^–31 kg and charge on electron = 1.6 × 10^–19 C

A
36.7 m

B
36.7 cm

C
3.67 m

D
3.67 cm

Solution
Question 4
4 / -1

The charge on a particle Y is double the charge on particle X. These two particles X and Y after being accelerated through the same potential difference enter a region of uniform magnetic field and describe circular paths of radii R₁ and R₂ respectively. The ratio of the mass of X to that of Y is

A

B

C

D

Solution
Question 5
4 / -1

A particle with 10^–11 coulomb of charge and 10^–7 kg mass is moving with a velocity of 10⁸ m/s along the y–axis. A uniform static magnetic field B = 0.5 tesla is acting along the x–direction. The force on the particle is

A

B

C

D

Solution
Question 6
4 / -1

A particle of charge qand mass m moving with a velocity v along the x–axis enters the region x>0 with uniform magnetic field B along the k ̂direction. The particle will penetrate in this region in the x–direction upto a distance d equal to

A
Zero

B

C

D
Infinity

Solution
Question 7
4 / -1

A charged particle is moving with velocity v in a magnetic field of induction B. The force on the particle will be maximum when

A
v and B are in the same direction

B
v and B are in opposite directions

C
v and B are perpendicular

D
v and B are at an angle of 45°

Solution
Question 8
4 / -1

A charged particle enters a magnetic field H with its initial velocity making an angle of 45° with H. The path of the particle will be

A
A straight line

B
A circle

C
An ellipse

D
A helix
Question 9
4 / -1

An electron and a proton enter a magnetic field perpendicularly. Both have same kinetic energy. Which of the following is true

A
Trajectory of electron is less curved

B
Trajectory of proton is less curved

C
Both trajectories are equally curved

D
Both move in straight-line path

Solution
Question 10
4 / -1

A charged particle moves in a uniform magnetic field. The velocity of the particle at some instant makes an acute angle with the magnetic field. The path of the particle will be

A
A straight line

B
A circle

C
A helix with uniform pitch

D
A helix with non-uniform pitch