11.3 Part 1

Capcitor NOT connected to a battery.

Capcacitance on the right has ...

• increased due to a greater dielectric material.

• increased due to a fewer dielectric material.

• decreased due to a greater dielectric material.

• decreased due to a fewer dielectric material.

Capcitor NOT connected to a battery.

The gray area on the right has ...

• greater dielectric than vacuum. (net elctric field is less)

• less dielectric than vacuum. (net electric field is less)

• greater dielectric than vacuum. (net elctric field is greater)

• less dielectric than vacuum. (net electric field is greater)

Voltage of the capacitor on the right is ...

• greater due the presence of dielectric material.

• smaller due the presence of dielectric material.

• the same. (still connected to the same battery)

W = qV ... W = q•Ed ... Net Electric field on the right is ...

• greater due the presence of dielectric material.

• smaller due the presence of dielectric material.

• the same. Because the work or Energy is the same on both circuits.

Where do we have more capacitance?

• On the right (greater dielectric ... more charge on plates ... same p.d.)

• On the right (greater dielectric ... more charge on plates ... less p.d.)

• On the left (vacuum in between ... same p.d.)

• On the left (vacuum in between ... more p.d.)

What might happened to the Capacitance if we decrease the separation?

• Will increase (less distance ... greater attraction)

• Will decrease (less distance ... greater attraction)

• Will increase (less distance ... less attraction)

• Will decrease (less distance ... less attraction)

What might happened to the charge on the plate if we decrease the separation?

• Will increase

  (Q proportional to C)

• Will decrease

  (Q proportional to C)

What might happened to the stored energy if we decrease the separation?

• Will increase

  (E proportional to C)

• Will decrease.

  (E proportional to C)

Capcitor NOT connected to a battery.

The p.d. on the right is ...

• less because it has more capacitance.

• less because it has less capacitance.

• more because it has more capacitance.

• more because it less more capacitance.