Acceleration of a charged particle of charge 'q' and mass 'm' mov
![Acceleration of a charged particle of charge 'q' and mass 'm' mov](/img/relate-questions.png)
| Acceleration of a charged particle of charge 'q' and mass 'm' moving in a uniform electric field of strength ‘E' is
A. qE/m
B. m/qE
C. mqE
D. q/mE
Please scroll down to see the correct answer and solution guide.
Right Answer is: A
SOLUTION
CONCEPT:
- Electric field force: When a charge moves in an electric field, a force will act on it, that is known as electric field force.
- Due to electric field Force is always in the direction of the electric field and force.
F = qE
where F is the force due to the electric field, q is the charge, and E is the electric field.
- Newton's second law: When a constant force acts on a body, it causes it to accelerate.
The acceleration (a) of the body is calculated by:
F = ma
where F is the force on the body, m is the mass of the body, and a is the acceleration.
EXPLANATION:
Electric force acting on the charge particle,
F = qE
By Using Newton's second law of motion,
F = ma
qE = ma
a = qE/m
So the correct answer is option 1.