Capacitor Quiz Ullens

The dimensional formula of capacitance is

Capacitor is a device used to__________

• store electrical energy

• vary the resistance

• store magnetic energy

• dissipate energy

Tags

NGSS.HS-PS3-2

NGSS.HS-PS3-3

Capacitor blocks__________ after long time.

• alternating current

• direct current

• both alternating and direct current

• neither alternating nor direct current

What is the value of capacitance of a capacitor which has a voltage of 4V and has 16C of charge?

• 2F

• 4F

• 6F

• 8F

For which medium capacitance is high?

• Air

• Mica

• Water

• Metal

The capacitance between two plates increases with

• Shorter plate area and higher applied voltage

• Shorter play area and shorter distance between them

• Larger plate area, longer distance between plates and higher applied voltage

• Larger plate area and shorter distance between plates

The capacitance of 1 μF equals

• 10 ^-12 F

• 10^-8 F

• 10^-6 F

• 10^-4 F

Unit of capacitance is___________

• Volts

• Farad

• Henry

• Newton

What are the factors that influence capacitance of a capacitor?

• Surface area

• Temperature

• Dielectric

• Length

• Distance between plates

What is a dielectric?

• Two electrons flowing in a circuit

• The two metal plates in a capacitor

• Insulating material between the plates in a capacitor

• Conducting liquid between electrodes in a battery