Recent content by seahs

Can the voltage source gain energy? what if the voltage source is like a non-rechargeable battery?

nope, just wondering what happens when the current flows into the voltage source

Suppose a capacitor is initially charged up to 2V, and then a 1V DC voltage source is used to discharge the capacitor to 1V, what is the energy consumption from the voltage source and what is the total energy loss? Assume the capacitor is connected to the voltage source using a resistor and...

I thought stored energy E = 1/2cv2 instead of work W = 1/2cv2

ohmic loss = QR = i*t*R = V*t?

The initial energy is 0.5*C The final energy is 2*C = 0.5*C*2^2 Why the energy increase is 0.5*C*(2-1)^2?

Consider the two scenarios below: 1) charging a capacitor from 0v to 1v 2) charging a capacitor from 1v to 2v energy stored on a capacitor is 0.5*C*(voltage)^2. So the energy increase for capacitor is 0.5*C in 1) and 1.5*C = 0.5*C*(2^2-1) in 2) Assume the ohmic loss are both 0.5*C since...