Welcome to the Quiz!
This quiz contains 16 questions from a mix of 1 subtopics.
What is electric current?
the amount of energy transferred
the speed of electron flow
the rate of flow of electric charge
the voltage across a component
|
What unit is electric charge measured in?
coulombs
joules
amperes
volts
|
If 10 C of charge flows past a point in 5 seconds, what is the current?
2 A
100 A
0.5 A
50 A
|
If a current of 5 A flows for 30 seconds, how much charge has flowed?
15 C
1.5 C
0.15 C
150 C
|
How is electric current analogous to the flow of water through a pipe?
the current is analogous to the flow rate
the charge is analogous to the volume of water
the voltage is analogous to water pressure
the resistance is analogous to the pipe diameter
|
What is the relationship between current, charge and time?
Q = I ÷ t
I = Q × t
I = Q + t
Q = I × t
|
If 20 C of charge flows past a point in 10 seconds, what is the current?
2 A
20 A
0.5 A
10 A
|
What unit measures the rate of flow of electric charge?
volt (V)
coulomb (C)
watt (W)
ampere (A)
|
How much charge has flowed if a current of 5 A flows for 1 minute?
0.3 C
30 C
3 C
300 C
|
What is a coulomb equal to?
the energy transferred by a current of 1 A in 1 second
the voltage across a 1 ohm resistor with a current of 1 A
the power dissipated in a 1 ohm resistor with a voltage of 1 V
the charge flowing in 1 second at a current of 1 A
|
If 2.5 × 1020 electrons flow past a point, how much charge has flowed in coulombs?
40 C
0.4 C
4 C
400 C
|
A device uses 24 coulombs of charge in 3 minutes. Calculate the current flowing through the device.
0.20 A
0.80 A
8.00 A
0.13 A
|
If 60 coulombs of charge flow through a circuit in 2 minutes, what is the current?
1.5 A
1.0 A
2.0 A
0.5 A
|
Calculate the amount of charge that passes through a point when a current of 1.5 A flows for 40 seconds.
75 C
90 C
45 C
60 C
|
What current results from 150 coulombs of charge flowing through a conductor in 50 seconds?
5 A
3 A
2 A
4 A
|
How many electrons flow through a wire if a current of 0.5 A flows for 1 minute?
1.875×1020
1.875×1019
3.75×1020
3.75×1019
|