Why can't a cyclotron accelerate electrons?

Important Questions on Moving Charges and Magnetism

MEDIUM

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 1

Does a stationary charge experience a force in a magnetic field?

MEDIUM

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 2

Obtain the frequency of revolution of the electron, in a magnetic field, in its circular orbit. Does the answer depend on the speed of the electron? Explain.

HARD

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 3

 The frequency of cyclotron is 10⁷ Hz. What should be operating magnetic field for accelerating protons ? If the radius of the dee’s of the cyclotrons is 6 x 10^-1 m, calculate the energy of the proton beam produced by it in MeV. Given e = 1.6 x 10^-19 C, Mp = 1.67 x 10^-27 kg. 1 MeV = 1.602 x 10^-13 J.

EASY

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 4

Why cyclotron is not used to accelerate light charged particles?

EASY

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 5

What is the magnitude of magnetic force per unit length on a wire carrying a current of $8 \mathrm{A}$ and making an angle of $30°$ with the direction of a uniform magnetic field of $0.15 \mathrm{T}$?

MEDIUM

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 6

A $3.0 \mathrm{cm}$ wire carrying a current of $10 \mathrm{A}$is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be $0·27 \mathrm{T}$. What is the magnetic force on the wire?

HARD

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 8

Two parallel wires separated by $2 \mathrm{m}$ carry currents of $3\mathrm{A}$ each in the opposite directions. Find the magnetic induction for the points between the wires at a distance $50 \mathrm{cm}$from each wire.

MEDIUM

12th Meghalaya Board

IMPORTANT

Physics Crash Course (Based on Revised Syllabus-2023)>Chapter 4 - Moving Charges and Magnetism>Exercise>Q 11

Two long and parallel straight wires A and B carrying currents of $8.0 \mathrm{A}$ and $5.0 \mathrm{A}$ in the same direction are separated by a distance of $4.0 \mathrm{cm}$. Estimate the force on a $10 \mathrm{cm}$ section of wire A.