What is the unit of electric current?
Ampere (A)
True or False: Voltage is the measure of the energy per unit charge.
True
Fill in the blank: The formula for calculating resistance is _____ = Voltage / Current.
Resistance
What is the relationship between current, voltage, and resistance known as?
Ohm’s Law
What is the unit of voltage?
Volt (V)
True or False: A series circuit has the same current flowing through all components.
True
In a parallel circuit, the total resistance is _____ than the smallest individual resistance.
Less
What does a voltmeter measure?
Voltage
What is the unit of electrical power?
Watt (W)
True or False: Power is calculated by multiplying current and voltage.
True
Fill in the blank: The formula for electrical power is _____ = Voltage x Current.
Power
What does a ammeter measure?
Current
What is the equivalent resistance of two resistors in series, R1 and R2?
R1 + R2
What is the equivalent resistance of two resistors in parallel, R1 and R2?
1 / (1/R1 + 1/R2)
True or False: In a series circuit, if one component fails, the whole circuit stops working.
True
What is the purpose of a fuse in an electrical circuit?
To protect the circuit from excessive current
Fill in the blank: The flow of electric charge is called _____ .
Current
What is the principle of conservation of charge?
Charge cannot be created or destroyed, only transferred.
What is meant by ‘short circuit’?
A low-resistance connection between two points in a circuit.
Fill in the blank: The total energy transferred in a circuit is equal to _____ x charge.
Voltage
What does Kirchhoff’s first law state?
The total current entering a junction equals the total current leaving.
True or False: Capacitors store electric charge.
True
What is the unit of capacitance?
Farad (F)
Fill in the blank: The formula for capacitance is _____ = Charge / Voltage.
Capacitance
