11.3 capacitors (intro)

The figure to the right represents:

• Capacitor
• Diode
• Inductor
• Resistor

Which of the following is symbol of capacitor ?

• 
• 
• 
• 

Capacitance is measured in___________

• Coulombs

• Farads

• Hz

• Volts

The insulating layer of a capacitor is called the

• plate

• conductors

• dielectric

• terminals

In the capacitor, the dielectric can be made out of all sorts of ---------- materials and the plates are made of a -------------- material.

• conductive, insulating

• conductive, conductive

• insulating, conductive

• insulating, insulating

What happens to the charge in a capacitor during the charging process?

• Collects more and more electrons

• Decreases charge over time

• Remains the same

What happens to the current in the circuit during the discharging process of a capacitor?

• current decreases over time

• current increases over time

• Remains constant

• more information needed

In the RC circuit, the time constant (τ) for the circuit is:

• τ = R × C
• τ = R / C
• τ = C × R
• τ = R² × C

The capacity of a parallel plate condenser is C . Its capacity when the separation between the plates is halved will be

• 4C

• 2C

• C/2

• C/4

When a dielectric material is introduced between the plates of a charged condenser then electric field between the plates

• Decreases

• Increases

• Remain constant

• First (b) then (a)