0
You visited us 0 times! Enjoying our articles? Unlock Full Access!
Question

If electron velocity is 2^i+3^j and it is subjected to magnetic field of 4^k, then its
  1. speed will change
  2. both (a) and (b)
  3. none of these
  4. path will change

A
none of these
B
speed will change
C
path will change
D
both (a) and (b)
Solution
Verified by Toppr

since magnetic field is perpendicular to the direction of option or the velocity vector of the electron. therefore, the force will always act perpendicular to the both direction of magnetic field as well as velocity vector of electron and electron will do a circular motion since magnetic field is uniform.
Hence only direction of motion will change.

Was this answer helpful?
2
Similar Questions
Q1
If electron velocity is 2^i+3^j and it is subjected to magnetic field of 4^k, then its
View Solution
Q2
If a rigid body is subjected to two forces F1=2^i+3^j+4^k acting at (3,3,4) and F2=2^i3^j4^k acting at (1,0,0), then which of the following is true ?
View Solution
Q3
If A=2^i+3^j^k and B=^i+3^j+4^k, then projection of A on B will be
View Solution
Q4
The acceleration of an electron at a certain moment in a magnetic field B=2^i+3^j+4^k is a=x^i+^j^k.The value of x is
View Solution
Q5
The angular velocity of a body is given by ω=3^i+2^j+3^k. A torque τ=2^i++3^j+4^k acts on it. Then rotational power will be:
View Solution