Question
If a charged particle kept at rest experiences an electromagnetic force:
✓
Answer
- The electric field must not be zero.
- The magnetic field may or may not be zero.
Since particle is at rest, i.e. v=0, hence Fm=0
For electric force, E≠0
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In the circuit, if the forward voltage drop for the diode is $0.5V,$ the current will be
→The capacitance of a capacitor does not depend on:
A condenser of capacity $50\ \mu F$ is charged to $10$ volts. Its energy is equal to
→A lens of focal power 0.5 D is(a) A convex lens of focal length 0.5 m(b) A concave lens of focal length 0.5 m(c) A convex lens of focal length 2 m(d) A concave lens of focal length 2 m
Two similar coils are kept mutually perpendicular such that their centres coincide. At the centre, find the ratio of the magnetic field due to one coil and the resultant magnetic field by both coils, if the same current is flown
Starting with a sample of pure $66_{Cu}, \frac{7}{8}$ of it decays into $Zn$ in $15\ min.$ The corresponding half$-$life is
→The velocity of light is maximum is :
The age of universe is believed to be (a) 1 billion years(b) 10 billion years(c) 10-20 billion years(d) 1000 billion years
If each resistance in the figure is of $9 {\Omega}$ then reading of ammeter is
→If a current is passed through a spring then the spring will: