Author Question: Two parallel conducting plates form a capacitor. It is isolated and a charge Q is placed on it. A ... (Read 72 times)

go.lag · **on:** Jul 28, 2018

Two parallel conducting plates form a capacitor. It is isolated and a charge Q is placed on it. A metal cylinder of length half the plate separation is then inserted between the plates.

HOW MANY of the quantities
C, V, Q, E, and U change?

1.0
2.1
3.2
4.3
5.4
6.5
7.Impossible to determine

Question 2

A capacitor having, C1, is connected to a battery until charged, then disconnected from the battery. A second capacitor, C2, is connected in parallel to the first capacitor. Which statements below are true?

1.Charge on C1 decreases.
2.Total charge on C1 and C2 is the same as the original Q.
3.The total energy stored in both capacitors is the same as the original U stored in C1.
4.The potential difference (Voltage) across C1 decreases.
5.All of the above.
6.Only 1, 2, and 3 are true.
7.Only 1, 2, and 4 are true.
8.None of the above.