Questions from College Physics

Q: When a potential difference of 150. V is applied to the

When a potential difference of 150. V is applied to the plates of an air-filled parallel-plate capacitor, the plates carry a surface charge density of 3.00 x 10-10 C/cm2. What is the spacing between t...

Q: Three parallel-plate capacitors are constructed, each having the same

Three parallel-plate capacitors are constructed, each having the same plate area A and with C1 having plate spacing d1, C2 having plate spacing d2, and C3 having plate spacing d3. Show that the total...

Q: For the system of four capacitors shown in Figure P16.41

For the system of four capacitors shown in Figure P16.41, find (a) The total energy stored in the system and (b) The energy stored by each capacitor. (c) Compare the sum of the answers in part (b) wit...

Q: A parallel-plate capacitor with a plate separation d has a

A parallel-plate capacitor with a plate separation d has a capacitance C0 in the absence of a dielectric. A slab of dielectric material of dielectric constant k and thickness d/3 is then inserted betw...

Q: Two capacitors give an equivalent capacitance of Cp when connected in parallel

Two capacitors give an equivalent capacitance of Cp when connected in parallel and an equivalent capacitance of Cs when connected in series. What is the capacitance of each capacitor?

Q: A parallel-plate capacitor is constructed using a dielectric material whose

A parallel-plate capacitor is constructed using a dielectric material whose dielectric constant is 3.00 and whose dielectric strength is 2.00 x 108 V/m. The desired capacitance is 0.250 μF, and the ca...

Q: Two charges of 1.0 μC and -2.0

Two charges of 1.0 μC and -2.0 μC are 0.50 m apart at two vertices of an equilateral triangle as in Figure P16.64. (a) What is the electric potential due to the 1.0-Î...

Q: Find the equivalent capacitance of the group of capacitors shown in Figure

Find the equivalent capacitance of the group of capacitors shown in Figure P16.65. Figure P16.65:

Q: An aluminum cup contains 225 g of water and a 40-

An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 400-g sample of silver at an initial temperature of 87°C is placed in the water. The stirrer is used to stir the mixtu...

Q: A spherical capacitor consists of a spherical conducting shell of radius b

A spherical capacitor consists of a spherical conducting shell of radius b and charge -Q concentric with a smaller conducting sphere of radius a and charge Q. (a) Find the capacitance of this device....