Physics, asked by Devanshchaubey, 1 year ago

an electron is moving in a magnetic field then which of the following physical quantity remains unchanged
a)momentum
b) kinetic energy
c) velocity
d) both a and b

Answers

Answered by JunaidMirza
1
b) Kinetic energy

Explanation:
Electron in magnetic feild get deflected. It’s direction is changed.
Momentum and velocity are vectors. Therefore they’re changed.
Kinetic energy is scalar.
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