Two particles A and B of masses ma and mu respectively and having the same charge are moving in a plane. A uniform magnetic field exists perpendicular to this plane. The speeds of the particles are vA and vu respectively and trajectories are as shown the figure. Then
Correct answer: B. MA VA > MB VB
- A. MA VA < MB VB
- B. MA VA > MB VB
- C. MA<MB and VA<VB
- D. MA=MB and VA=VB
Explanation
When a charged particle is moving at right angle to the magnetic field, then a force acts on it which behaves as a centripetal force and moves the particle in circular path.Explanation is given below:
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
Practise Electromagnetism
1,176 free Electromagnetism MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electromagnetism questions
Which of the following is a vector quantity?
Two parallel long wires carry the same current and repel each other with a force F per unit length. If both these currents are doubled and the wire separation tripled, the force per unit length becomes:
Magnetic field is set up in a region around a conductor, carrying:
A proton (mass m and charge +e) and an α- particle (mass 4m and charge +2e) are projected with the same kinetic energy at right angles to the uniform magnetic field. Which one of the following statements will be true:
Two parallel wires carrying equal currents of 10A attract each other with a force of 1 mN. If both currents are doubled, the force of attraction will be:
The frequency of cyclotron is given as: