Question

I need help!

Answer 1

(a) An electron starts at rest and accelerates through an electric field established by a set of parallel plates with a potential difference of 35 V. What is the speed of the electron the instant before it hits the negative plate? (e = 1.6 × 10-19 C, melectron = 9.1 × 10-31 kg)

(b) Instead of hitting the negative plate, the electron, travelling East, escapes the parallel plates through a small hole and enters a magnetic field of 0.75 T directed downward. What will be the magnetic force (magnitude and direction) on the charge?

(c) Once the electron has entered the magnetic field, it is in circular motion. What is the radius of the electron’s circular path?

Answer 2

@ganeshie8 @AloneS @czesc @inkyvoyd

Answer 3

@CanadianSteve99

Answer 4

Sorry, I'm terrible at physics. Try the Mathematics chat.

Answer 5

@Astrophysics

Answer 6

can someone plz check my answers?

Answer 7

looks good to me! i mean the formulae, didn't check the arithmetic

you need to specify the direction of the force on the electron, use left hand rule..

Answer 8

@baru

Answer 9

@ParthKohli

Answer 10

thaey all look good to me! good job!