| ⇦ | 
| ⇨ |
A particle having a mass of 10⁻² kg carries a charge of 5 x 10⁻⁸C. The particle is given an initial horizontal velocity of 10⁵ m/s. In the presence of electric field E⃗ and magnetic field B⃗. To keep the particle moving in a horizontal direction, it is necessary that
(1) B⃗ should be perpendicular to the direction of velocity and E⃗ should be along the direction of velocity.
(2) Both B⃗ and E⃗ should be along the direction of velocity.
(3) Both B⃗ and E⃗ are mutually perpendicular and perpendicular to the d
Options
(a) (2) and (4)
(b) (1) and (3)
(c) (3) and (4)
(d) (2) and (3)
Correct Answer:
(2) and (3)
Explanation:
Force to the electric field acts along the direction of the electric field but force due to the magnetic field acts along a direction perpendicular to both the velocity of the charged particle and the magnetic field. Hence both statements (2) and (3) are ture. In statements (2), magnetic force is zero, so, electric force will keep the particle continue to move in horizontal direction. In statement (3), both electric and magnetic forces will be opposite to each other. If their magnitudes will be equal then t
Related Questions: - A light emitting diode(LED) has a voltage drop of 2 volt across it
- A charged particle experiences magnetic force in the presence of magnetic field.
- Two bodies A and B having temperature 327° C and 427° C are radiating heat
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
- The number of significant figures in 0.06900
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A light emitting diode(LED) has a voltage drop of 2 volt across it
- A charged particle experiences magnetic force in the presence of magnetic field.
- Two bodies A and B having temperature 327° C and 427° C are radiating heat
- An ideal coil of 10 H is connected in series with a resistance of 5Ω and a battery
- The number of significant figures in 0.06900
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply