Electricity and Circuits Quiz

What type of current changes direction periodically?

• Direct Current

• Static Current

• Alternating Current

• Passive Current

Which of the following electric circuits allows current to flow?

• Open Circuit

• Closed Circuit

• Short Circuit

• Broken Circuit

What is the unit of voltage?

• Ohm

• Watt

• Ampere

• Volt

Which device is used to measure electric current?

• Voltmeter

• Ammeter

• Ohmmeter

• Multimeter

What does Ohm’s Law state?

• V = I + R

• V = IR

• V = I/R

• I = VR

In a series connection, the total voltage is:

• Average of all voltages

• The lowest voltage

• The same as a single voltage

• Sum of all voltages

In a parallel connection, the voltage across each component is:

• Different

• Equal

• Increases gradually

• Decreases gradually

Which component stores energy electrostatically?

• Resistor

• Capacitor

• Diode

• Inductor

What is the function of a diode?

• Stores energy

• Resists current

• Allows one-way current flow

• Controls voltage

What is a feature of LED?

• Emits light when current flows

• Stores electric charge

• Acts as a resistor

• Reverses current direction