# Question

A 1.50-F capacitor is connected to a 12.0-V battery for a long time, and then is disconnected. The capacitor briefly runs a 1.00-W toy motor for 2.00 s. After this time,

(a) by how much has the energy stored in the capacitor decreased?

(b) What is the voltage across the plates?

(c) How much charge is stored on the capacitor?

(d) How much longer could the capacitor run the motor, assuming the motor ran at full power until the end?

(a) by how much has the energy stored in the capacitor decreased?

(b) What is the voltage across the plates?

(c) How much charge is stored on the capacitor?

(d) How much longer could the capacitor run the motor, assuming the motor ran at full power until the end?

## Answer to relevant Questions

Two parallel plates have a capacitance value of 0.17μF when they are 1.5 mm apart. They are connected permanently to a 100-V power supply. If you pull the plates out to a distance of 4.5 mm, (a) What is the electric field ...What is the equivalent capacitance of two capacitors with capacitances of 0.40μF and 0.60μF when they are connected (a) In series and (b) In parallel? What are the maximum and minimum equivalent capacitances that can be obtained by combinations of three capacitors of 1.5 μF, 2.0 μF, and 3.0 μF? Two very large horizontal parallel plates are separated by 1.50 cm. An electron is to be suspended at rest in midair between them. (a) The top plate should be at (1) a higher potential, (2) an equal potential, (3) a lower ...In Exercise 8, by how much does the potential energy of the atom change if the electron changes location (a) From the lower to the higher orbit, (b) From the higher to the lower orbit, and (c) From the larger orbit to a ...Post your question

0