Electric Potential
Electric potential is measured in
volts
What is the formula for Capacitance involving Charge and Voltage
C=Q/V
The unit for current
amps
In ______________, charge carriers move repeatedly back and forth.
Alternating current
A battery is a device that maintains a potential difference between two
terminals
Does capacitance increase or decrease if you increase the area of the plates?
Increase
The speed overall of an electron passing thru a wire.
Drift velocity
Power = _____2 * Resistance
Current
What is the formula for potential difference between two locations in a uniform electric field?
V=-Ed
What happens to a capacitor if you increase the separation distance of the plates?
Capacitance decreases
What is the potential difference across a 10 W resistor if the current in the resistor is 3.0 A?
30V
Power = Current * _________
Voltage
A charge moves 10m along a uniform electric field of strenght 75N/C. What is the electric potential difference between its start and finish.
750 V
A 0.47 F capacitor holds 1.0 C of charge on each plate. What is the potential
difference across the capacitor?
2.1V
A current of 295 A passes through an automobile starter motor. How long does the starter motor operate if 377 coulombs pass through the starter?
1.28s
A certain circuit connected to a 1.5 V battery dissipates 2.0 W of power. If a second battery is added to the circuit, resulting in a potential difference of 3.0 V, what power will be dissipated?
4W
An electron moves 4.5 m in the direction of an electric field of strength 325 N/C. Determine the change in Potential Energy.
2.3 x 10^-16 J
A capacitor has a capacitance of 2200 µF and is charged to a potential difference of 450 V. How much electrical potential energy is stored in the capacitor?
440 J
What is the name of a material that does not follow V=IR?
A non-ohmic material
A microwave oven connected to a 117 V outlet operates at a current of 8.7 A. If the microwave oven is operated exactly 1 hour each day for 28 days, what is the cost of operating this microwave oven if the cost of electric energy is $0.115 per kW·h?
$3.20