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WorksheetsElectricity Charge and Static Calculations (Q1)
Total questions: 20
Worksheet time: 30mins
What is the unit of electric current?
Volt (V)
Ampere (A)
Coulomb (C)
Ohm (Ω)
Which formula correctly relates charge (Q), current (I), and time (t)?
Q = I / t
Q = I * t
Q = t / I
Q = 1 / (I * t)
A current of 3 amperes flows through a wire for 5 seconds. How much charge has passed through the wire?
1.67 Coulombs
15 Coulombs
3 Coulombs
5 Coulombs
If 20 Coulombs of charge pass through a conductor in 4 seconds, what is the current flowing through it?
5 Amperes
80 Amperes
0.2 Amperes
24 Amperes
How long does it take for 10 Coulombs of charge to pass through a conductor if the current is 2 Amperes?
5 seconds
20 seconds
0.2 seconds
12 seconds
A light bulb has a current of 0.5 Amperes flowing through it for 1 minute. How much charge has passed through the bulb?
30 Coulombs
60 Coulombs
120 Coulombs
0.5 Coulombs
If 25 Coulombs of charge pass through a circuit in 10 seconds, what is the current?
2.5 Amperes
0.4 Amperes
250 Amperes
10 Amperes
A battery delivers a current of 1.5 Amperes for 30 seconds. Calculate the total charge delivered by the battery.
45 Coulombs
20 Coulombs
0.05 Coulombs
18 Coulombs
How long will it take for 50 Coulombs of charge to pass through a wire if the current is 10 Amperes?
5 seconds
500 seconds
0.2 seconds
10 seconds
A device draws a current of 2.5 Amperes for 2 minutes. Determine the amount of charge that has passed through the device.
5 Coulombs
150 Coulombs
300 Coulombs
120 Coulombs
A device draws a current of 25 mA for 10 seconds. How much charge (in Coulombs) has passed through the device?
2.5 C
0.025 C
0.25 C
250 C
A battery delivers 500 mC of charge in 2 seconds. What is the current flowing through it (in Amperes)?
0.25 A
250 A
2 A
0.5 A
How long does it take for 1500 mC of charge to pass through a conductor if the current is 75 mA?
20 seconds
0.02 seconds
112.5 seconds
2 seconds
A light bulb has a current of 120 mA flowing through it for 1 minute. How much charge (in Coulombs) has passed through the bulb?
0.72 C
0.12 C
120 C
7.2 C
If 800 mC of charge pass through a circuit in 40 milliseconds, what is the current (in Amperes)?
0.002 A
0.02 A
32 A
20 A
Which of the following is an example of static electricity?
A light bulb turning on when a switch is flipped.
A balloon sticking to a wall after being rubbed on hair.
A toaster heating up bread.
A fan spinning to cool a room.
What is the main difference between static electricity and current electricity?
Static electricity is caused by friction, while current electricity is caused by magnetism.
Static electricity involves a continuous flow of electrons, while current electricity involves a buildup of charges.
Static electricity involves a buildup of charges, while current electricity involves a continuous flow of electrons.
Static electricity can only be produced by rubbing objects together, while current electricity can be produced by batteries.
What is the primary cause of static electricity?
The constant motion of electrons.
The buildup of an imbalance of electric charges.
The flow of electrons through a conductor.
The conversion of electrical energy into other forms of energy.
Why are electrical wires often covered in a rubber or plastic coating?
To make them more flexible.
To prevent them from overheating.
To protect the user from electric shock.
To improve their conductivity.
Which of the following is the best conductor of electricity?
Wood
Rubber
Copper
Plastic
