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WorksheetsProject 4 Review
Total questions: 20
Worksheet time: 32mins
The voltage drop across a circuit elements is equal to its ___ times the current flowing through it.
power
resistance
voltage
current
The power dissipated by a circuit elements is equal to the current passing through it times the ______.
energy usage of the element
resistance of the element
voltage drop across it
kilowatt hours
What type of circuit is depicted here?
series
parallel
combination
open
What type of circuit is depicted here?
series
parallel
combination
open
A hot plate connected across a potential difference of 80 V has a resistance of 10 Ω. What is the current in the hot plate? Answer in units of A.
90 A
70 A
800 A
8 A
A typical color television draws 6 A of current when connected across a potential difference of 480 V. What is the effective resistance of the television set? Answer in units of Ω.
80 Ω
2880 Ω
474 Ω
486 Ω
A 10 V automobile battery is connected to an electric starter motor. The current through the motor is 100 A. How much power does the motor dissipate? Answer in units of W.
100 W
10 W
1000 W
0.1 W
A 10 V automobile battery is connected to an electric starter motor. It dissipates 100 W of power. How much energy does the battery deliver to the motor during a 5 s period? Answer in units of J.
1000 J
50 J
500 J
5000 J
What is the equivalent resistance for this circuit if each resistor has a resistance of 3 Ω?
1 Ω
9 Ω
3 Ω
6 Ω
What is the electric force between an object with a charge of +1 C and an object with a charge of -1 C that are 1 m apart?
9 N
-9x109 N
9x10-9 N
-9 N
A dust particle acquires a charge of −12 nC. How many excess electrons does it carry?
7.5
-7.5
-7.5x1010
7.5x1010
The units of electric force are ___________.
N
W
J
V
Electric force is proportional to the charge of each object and inversely proportional to __________.
volume
square root of distance
distance
distance squared
The positively charged particle that is in an atom's nucleus is the _____.
neutron
proton
photon
electron
The ______ Law says that the field strength is inversely proportional to the square of the distance between the objects.
Electrical Field
Universal Gravitational
Inverse Square
Space Field
A string of 20 identical Christmas tree lights are connected in series to a 140 V source. The string dissipates 70 W. What is the equivalent resistance of the light string? Answer in units of Ω.
280 Ω
2 Ω
20 Ω
28 Ω
A string of 20 identical Christmas tree lights are connected in series to a 140 V source. The string dissipates 70 W. What is the resistance of a single light? Answer in units of Ω.
280 Ω
14 Ω
1 Ω
10 Ω
A string of 20 identical Christmas tree lights are connected in series to a 140 V source. The string dissipates 70 W. What power is dissipated in a single light? Answer in units of W.
70 W
2 W
3.5 W
7 W
The three resistors listed below are connected in parallel to a battery with no other resistors. What is the equivalent resistance of the circuit?
5 Ω
5 Ω
10 Ω
Answer in units of Ω.
10 Ω
0.5 Ω
20 Ω
2 Ω
The three resistors listed below are connected in series to a battery with no other resistors. What is the equivalent resistance of the circuit?
5 Ω
5 Ω
10 Ω
Answer in units of Ω.
10 Ω
0.5 Ω
20 Ω
2 Ω
