# Electric field strength between charged plates

1. Aug 3, 2017

### Cici2017

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution
E=kq/d2

how do I involve the kinetic energy K in the equation?

2. Aug 3, 2017

### conscience

What is the relationship between potential difference between the plates and electric field between the plates ?

How do you relate potential difference and electric potential energy ?

Think in terms of conservation of energy .

OR

Use Dimensional Analysis

3. Aug 3, 2017

### Cici2017

Electric potential energy = qV= kqQ/d

Is this equal to the kinetic energy K?

4. Aug 3, 2017

### conscience

No , this is for a point charge .

5. Aug 3, 2017

### Cici2017

Sorry, that's the only formula I know. Can you please tell me? Thank you!

6. Aug 3, 2017

### conscience

If the electric field between the charged plates is E , what will be the force on the charged partice +q ?

7. Aug 3, 2017

F=Eq

8. Aug 3, 2017

### conscience

Now if charged particle moves from positive plate to negative , how much is the work done on the particle by the electric force ?

9. Aug 3, 2017

### Cici2017

W=Eqd

10. Aug 3, 2017

### conscience

Now what does Work Kinetic Energy theorem say ?

11. Aug 3, 2017

### Cici2017

work done equals to change in KE

so Eqd=K

E=K/qd

12. Aug 3, 2017

### conscience

Yes

13. Aug 3, 2017

### Cici2017

Thank you so much~