Question:
\(e^-\) revolving with speed V is producing magnetic field B at center. Find relation between radius of path, B & V?
\(e^-\) revolving with speed V is producing magnetic field B at center. Find relation between radius of path, B & V?
Updated On: Jun 25, 2024
- \(B∝V∝\frac 1r\)
- \(B∝V∝\frac 1r^2\)
- \(B∝V^2∝\frac 1r\)
- \(B∝V^2∝\frac 1r^2\)
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
The correct option is (B): \(B∝V∝\frac 1r^2\).
Was this answer helpful?
0
0
Top Questions on Magnetic Field
A conducting bar moves on two conducting rails as shown in the figure. A constant magnetic field \( B \) exists into the page. The bar starts to move from the vertex at time \( t = 0 \) with a constant velocity. If the induced EMF is \( E \propto t^n \), then the value of \( n \) is _____.
- JEE Main - 2025
- Physics
- Magnetic Field
- Consider a long thin conducting wire carrying a uniform current \( I \). A particle having mass \( M \) and charge \( q \) is released at a distance \( a \) from the wire with a speed \( v_0 \) along the direction of current in the wire. The particle gets attracted to the wire due to magnetic force. The particle turns round when it is at distance \( x \) from the wire. The value of \( x \) is:
- JEE Main - 2025
- Physics
- Magnetic Field
- A solid sphere is rolling without slipping on a horizontal plane. The ratio of the linear kinetic energy of the centre of mass of the sphere and rotational kinetic energy is:
- JEE Main - 2025
- Physics
- Magnetic Field
- The magnetic field inside a 200 turns solenoid of radius 10 cm is \( 2.9 \times 10^{-4} \) Tesla. If the solenoid carries a current of 0.29 A, then the length of the solenoid is:
- JEE Main - 2025
- Physics
- Magnetic Field
- A bar magnet has total length \( 2l = 20 \) units and the field point \( P \) is at a distance \( d = 10 \) units from the centre of the magnet. If the relative uncertainty of length measurement is 1%, then the uncertainty of the magnetic field at point P is:
- JEE Main - 2025
- Physics
- Magnetic Field
View More Questions
Questions Asked in JIPMER MBBS exam
- Speed of particles at 3rd and 8th seconds are 20 m/s are zero respectively. Then average acceleration between 3rd and 8th second will be -
- JIPMER MBBS - 2019
- Kinematics
- What is the value of γ for a monoatomic gas (ideal gas):
- JIPMER MBBS - 2019
- Ideal gas equation
- Write the IUPAC name of the following
- JIPMER MBBS - 2019
- Nomenclature Of Organic Compounds
- Find the current drawn from the battery just after the switch is closed
- JIPMER MBBS - 2019
- An Electric Circuit
- If same charge q is placed inside a sphere and cube having radius 1m and side 2m respectively. What will be the ratio of flux passing through them ?
- JIPMER MBBS - 2019
- Electric Flux
View More Questions