Electrical Components Quiz

What is the function of a capacitor in a circuit?

• Opposes the flow of current, creating a voltage drop.

• Stores energy in an electric field.

• A semiconductor component used as an amplifier or switch.

• A circuit that allows current to flow.

Which component is used as an amplifier or switch in circuits?

• Resistor

• Inductor

• Transistor

• Capacitor

What is the definition of a closed circuit?

• A circuit that allows current to flow.

• A circuit that stores energy in an electric field.

• A circuit that opposes the flow of current.

• A circuit that stores energy in a magnetic field.

Which type of current constantly changes direction?

• Direct Current (DC)

• Alternating Current (AC)

• Electric Current

• Static Current

What is the unit of electrical resistance?

• Farad (F)

• Ohm (Ω)

• Ampere (A)

• Volt (V)

What is the unit of electric current?

• Farad (F)

• Ohm (Ω)

• Ampere (A)

• Volt (V)

What is the unit of electric charge?

• Coulomb (C)

• Volt (V)

• Farad (F)

• Ohm (Ω)

What is the ability of a capacitor to store energy in an electric field called?

• Resistance

• Capacitance

• Inductance

• Voltage

If the resistance is 150 Ω and voltage is 90 V, find the current:

• 0.6 A

• 1.5 A

• 0.8 A

• 1.2 A

If current is 12.5 A and resistance is 40 Ω, find the voltage:

• 500 V

• 450 V

• 400 V

• 350 V