Explain the meaning of the capacitance of a parallel plate capacitor.
A parallel plate capacitor $C$ is joined to the circuit shown in Fig. 7.1. The switch oscillates so that it is first at position X, then moves to position Y and then returns to position X $f$ times each second. The current shown on the ammeter is $4.5\,\mu\text{A}$. Determine the charge, in coulomb, that passes through the ammeter in $1.0\,\text{s}$. charge = ........................................................................ C
Determine the charge on one plate of the capacitor each time it is charged. charge = ........................................................................ C
Determine the capacitance for capacitor $C$. capacitance = ........................................................................ F
A second capacitor with the same capacitance as capacitor $C$ is now connected in series with $C$. Suggest and explain the effect on the current shown by the ammeter.