A capacitor is constructed from two conducting with a plate separation of d. The voltage between the plates is 31.2 volts and the electric field between the two plates is measured to be E = 2805 V/m.
What is the minimum amount of force needed to push an electron from the positive plate back to the negative plate?
1 answer
F=eE=1.6•10⁻¹⁹•2805 = 4.5•10⁻¹⁶ N