Problem 29.
A parallelplate air capacitor has a capacitance of 800 pF. The charge on each plate is 6 µC. What is the potential difference between the plates?
Solution
Problem 30.
A parallelplate air capacitor of capacitance of 100 pF has a charge of magnitude 0.1 µC on each plate. The plates are 0.5 mm apart.
(a) What is the potential difference between the plates?
(b) What is the area of each plate?
(c) What is the electricfield magnitude between the plates?
(d) What is the surface charge density on each plate?
Solution
Problem 81.
Find the equivalent capacitance of the capacitors shown in the figure.
Solution
Problem 82.
Find the equivalent capacitance of three capacitors shown in the figure.
Solution
Problem 83.
What is the charge on capacitor?
Solution
Problem 84.
What is the charge on capacitor?
Solution
Problem 85.
What is the charge on and the potential difference across capacitor?
Solution
Problem 86.
The charge on capacitor is . What is the capacitance of capacitor (see figure)?
Solution
Problem 87.
Find the energy stored in the system of capacitors shown in the figure.
Solution
Problem 88.
Two 1.0 cm x 1.0 cm metal electrodes are spaced 0.5 mm apart and connected to 12 V battery. What are the charge on each electrode and the potential difference between them?
Solution
Problem 89.
A parallel plate capacitor consists of two 5.0 cm x 5.0 cm metal electrodes spaced 1.5 mm apart. The capacitor is connected to a 10 V battery. How much energy is stored in the capacitor?
Solution
Problem 90.
An isolated parallelplate capacitor with the capacitance of has charge on it. An external force increases the distance between the plates by a factor of 2. How much work is done by the external force?
Solution
Problem 91.
What is the charge on capacitor?
Solution
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