What is the electrical device that acts as a pump to move electrons in a circuit?
battery, power supply
100
A 20.0 Ω resistor is connected to a 3.00 V battery and a switch. What is the current that is flowing through the wire?
0.15 A
100
Diagram a circuit in a house to include a switch, a 100 W light bulb, a 650 W microwave oven, a 10.0 W radio, and a 1400 W blender.
See PowerPoint Slide 1
100
A 20.0 Ω lamp and a 5.0 Ω lamp are connected in series and placed across a potential difference of 50.0 V. There is an ammeter and 2 voltmeters placed in the circuit as well. Draw a schematic diagram of this circuit.
See PowerPoint Slide 2
100
Three identical lamps are connected in a parallel circuit in a house. What is the voltage drop across each one of them?
120 V
200
What is the rate of charge flow past a particular point in a circuit?
Current
200
What is the current in a household circuit if in 24 hours, 5 x 10^6 C of charge flow through?
57.9 A
200
A 90.0 W lamp is connected to a power source. The lamp draws 0.750 A. What is the electrical potential of the power supply?
120 V
200
What is the equivalent resistance of the circuit on PowerPoint slide 5?
450 ohms
300
What is the hindrance to the flow of charge?
Resistance
300
What is the current through the 1400 W blender in the household circuit? (This is a US household)
11.7 A
300
The resistance load across a 12 V battery consists of a series combination of three resistors of 15 Ω, 21 Ω, and 24 Ω. What is the equivalent resistance of the circuit?
60 ohms
400
What is the relationship between equivalent resistance and the resistors in a parallel circuit?
1/Req = 1/R1 + 1/R2 + 1/R3
400
If 15 micro-coulombs of charge pass through a copper wire in 10 seconds, how much current is traveling through the wire?
1.5 x 10 ^ -6 A
400
A 400 W blender operates on a 120 V outlet. How much energy is used by the blender in 30 s?
12,000 J
400
What is the voltage drop across a 10 ohm resistor if it is in series with a 5 ohm resistor and connected to a 24 V power supply?
16 V
400
What is the equivalent resistance of the circuit on PowerPoint slide 4?
625 ohms
500
What is a Coulomb per second?
Current - Amp
500
What is the potential difference between two charged metal plates separated by a distance of 0.005 m if the electric field strength is 8000 N/C?
40 V
500
What is the cost in kwhr of a 4500 W heater being used for 30 min if it costs $0.20 per kwhr?
$0.45
500
What is the voltage supplied by the battery in the circuit on PowerPoint slide 6?
200 A
500
What would each meter read in the circuit on PowerPoint slide 3?