Understanding Capacitors and Inductors

What is a capacitor used for?

• To amplify electrical signals.

• A capacitor is used to store and release electrical energy.

• To measure electrical resistance.

• To convert electrical energy into mechanical energy.

What does capacitance measure?

• The speed of electric current.

• The frequency of electric signals.

• The ability to store electric charge.

• The resistance to electric flow.

What is an inductor used for?

• To convert AC to DC

• An inductor is used to store energy and filter signals in electrical circuits.

• To amplify electrical signals

• To measure voltage in circuits

What does inductance measure?

• Inductance measures the temperature of a conductor.

• Inductance measures the ability of a conductor to store energy in a magnetic field.

• Inductance measures the resistance of a conductor to electric current.

• Inductance measures the speed of electrical signals in a conductor.

How do capacitors store energy?

• Capacitors store energy in magnetic fields created by current flow.

• Capacitors store energy by compressing air between their plates.

• Capacitors store energy by converting it into heat.

• Capacitors store energy in the electric field created by separated charges on their plates.

How do inductors store energy?

• Inductors store energy in a capacitor.

• Inductors store energy in an electric field.

• Inductors store energy as heat.

• Inductors store energy in a magnetic field.

What is the unit of capacitance?

• ohm (Ω)

• farad (F)

• volt (V)

• watt (W)

What is the unit of inductance?

• volt

• ohm

• farad

• henry

Can capacitors block direct current (DC)?

• Capacitors allow direct current (DC) to pass through.

• Capacitors only block alternating current (AC).

• Capacitors can store direct current (DC) indefinitely.

• Yes, capacitors block direct current (DC).

Can inductors block alternating current (AC)?

• No, inductors do not block AC; they oppose it.

• Inductors only work with direct current (DC).

• Inductors allow AC to pass without any opposition.

• Yes, inductors completely block AC.