Question

Two parallel plates seperated by a distance of 5mm are kept at a potential difference of 50V.A particle of mass 10^(-15)kg and charge 10^(-11)C enters it with a velocity of 10^7 m/s.Find acceleration of particle

Answer 1

@experimentX why did he give velocity?

Answer 2

I mean there is only downward acceleration no matter how spped it comes in right?

Answer 3

The particles initial velocity here is irrelevant, yes.

Answer 4

But doing like this I am not gettin the correct answer

Answer 5

Answer is 10^(8)m/s^2

Answer 6

btw, why are you showing gravity. The orientation of the plates in a gravitational field is not specified.

Answer 7

So let's talk about the electric field. What is it in this problem?

Answer 8

True but apparently all the questions here is preimplied that it is on earth because he gave mass

Answer 9

No, what the electric force will give you is the force. Then you use the mass to find the acceleration as F = ma

Answer 10

E is 10^4 N/C

Answer 11

Damn!I wish the'd specify as to whether it is on earth or not.

Answer 12

How did you calculate E?

Answer 13

but you are getting insane values

Answer 14

E*d=Potential difference

Answer 15

In this case

Answer 16

Right.

I also agree with expX. The value of a is slightly crazy. This problem was not well written.

Answer 17

I am unsure as if to what he meant by entered with a velocity.I mean why did he give velocity.

Answer 18

velocity would be irrelevant ... though it would seem to produce same path as projectile motion

and also gravitional force is also irrelevant ... for this high amount of vlaue