Capacitance Reactance

If 4μF and 2μF capacitors are conneced in series, the equivalent capacitor is ___________.

• 1.33μF

• 0.75μF

• 6μF

• 2μF

Identical capacitors are connected in different combinations. Which of these capacitor networks has the largest capacitance?

• A

• B

• C

• D

Two capacitors X and Y of capacitances 2 F and 4 F respectively are connected in series with

a 12 battery. Which of the following statements is CORRECT?

• The effective capacitance is 6 F.

• Capacitors have the same charge of 36 C.

• The potential difference across the capacitor X is 8 V.

• The potential difference across the capacitors Y is 12 V.

Tags

NGSS.HS-PS3-2

Two capacitors of capacitance C₁ and C₂ are connected in parallel. What is the effective

capacitance?

• C₁C₂

• C₁+C₂

The insulating layer of a capacitor is called the

• plate

• conductors

• dielectric

• terminals

Capacitance is measured in___________

• Coulombs

• Farads

• Hz

• Volts

What is the unit of capacitive reactance?

• Ohms

• Farads

• Henrys

• Volts

If the frequency of an AC circuit is doubled, what happens to the capacitive reactance?

• It doubles

• It halves

• It remains the same

• It becomes zero

Which of the following factors does not affect the capacitive reactance of a capacitor?

• Frequency of the AC source

• Capacitance of the capacitor

• Voltage across the capacitor

• None of the above

In an AC circuit, the capacitive reactance is given by which formula?