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WorksheetsReview Activity
Total questions: 11
Worksheet time: 11mins
Which of the following correctly defines electric current?
The resistance of a conductor.
The total number of electrons flowing in a conductor
The force pushing electrons continuously in a conductor.
The amount of charge passing through a point per unit time.
Which of the following describes a complete circuit?
There is no battery connected.
Electrons stop moving because the circuit is open.
Electrons can move freely because the circuit is closed.
Only one wire or one pathway is connected to the battery.
What does Ohm’s law state?
Voltage is equal to current divided by resistance.
Current is directly proportional to resistance and indirectly to voltage.
Current is directly proportional to voltage and inversely proportional to resistance.
Current is inversely proportional to voltage and directly proportional to resistance.
What is the purpose of a switch in an electric circuit?
To store electrical energy.
To convert current into voltage.
To control the resistance in a circuit.
To open or close the circuit to control current flow.
What happens to the current in a circuit if the battery’s voltage is increased while resistance remains constant?
Current decreases.
Current increases.
Current becomes zero.
Current remains unchanged.
What is the unit of electric current?
Ohms
Amperes
Volts
Watts
What is the effect of increasing resistance in a circuit while keeping voltage constant?
Current remains the same
Current decreases
Current increases
Voltage decreases
What is the relationship between voltage, current, and resistance in a circuit?
Voltage is the sum of current and resistance.
Resistance is the sum of voltage and current.
Current is the product of voltage and resistance.
Voltage is the product of current and resistance.
What is the unit of electrical resistance?
Volts
Amperes
Ohms
Watts
A flashlight bulb draws 0.57A from its 12V battery. Solve for the resistance.
(a)
How much current is in the wire if 450 coulombs of charge flow for 3 minutes?
(a)
