7.2 Applications of Electric Field

Potential difference is the difference in the amount of energy that _____ have between two points in a circuit

Does potential difference also mean Voltage?

If you move unlike charges away from each other, then the electric potential difference is _______

If you move unlike charges closer to each other, then the electric potential difference is _______

Which takes more energy to bring them closer to each other:

What did the Millikan measure with his experiment?

A voltmeter reads 400 V across two charged, parallel plates that are 0.020 m apart. What is the magnitude of the electric field between them?

The beam is produced by an ______ gun, a device that accelerates and focuses the electrons given off by a hot wire.

What is the relationship between Charge and Potential Difference?

A capacitor has a capacitance of 0.078 μF. If the charge of the capacitor is 37 μC, what is the electric potential difference?

A sphere was connected to the + terminal of a 40 V battery while the − terminal was connected to Earth. After a period, the sphere was charged to 2.4×10^-6 C.

What is the capacitance of the sphere-Earth system?

Capacitor is a device used to__________

Capacitor stores which type of energy?

What is the value of capacitance of a capacitor which has a voltage of 4V and has 16C of charge?