Current Electricity

What device is used to measure electric current?

• Capacitor

• Resistor

• Ammeter

• Voltmeter

What is the unit of electric current?

• Ohm

• Watt

• Ampere

• Coulomb

How should an ammeter be connected in a circuit?

• In parallel

• In series

• It does not matter

• Directly to the power source

What two conditions are necessary for the flow of current?

• Resistance and Capacitance

• Inductance and Resistance

• Voltage and a Complete Circuit

• Voltage and an Open Circuit

What happens to the current when a switch opens in a circuit?

• It reverses direction

• It decreases

• It increases

• It stops flowing

How does current behave in a series circuit?

• It divides equally among all components

• It only flows through the first component

• It remains the same through all components

• It varies from one component to another

In a parallel circuit, how is current distributed?

• It remains constant in all branches

• It is divided based on resistance

• It flows only through the path of least resistance

• It is shared between the different branches

What formula is used to calculate current?

• Current = Resistance * Voltage

• Current = Charge / Time

• Current = Power / Voltage

• Current = Voltage / Resistance

What is the relationship between charge, current, and time?

• Charge = Current - Time

• Charge = Current * Time

• Charge = Current / Time

• Charge = Current + Time

If the charge is 60 Coulombs and the time is 15 seconds, what is the current?

• 75 Amps

• 45 Amps

• 15 Amps

• 4 Amps