PHYSICS 4Q REVIEW

What is the function of a capacitor?

• To capacitate

• To consume energy

• To resist current

• To store energy as electric charge

What is being represented by the formula above?

• Parallel capacitance

• Parallel resistance

• Series resistance

• Series capacitance

In the formula C = Q / V, _____ is represented by "Q."

• Capacitance

• Charge

• Quality

• Potential Difference

It is known as the insulating layer of the capacitor.

If three resistors are connected in parallel,then effective resistance is ___ μF.

Given: C₁=5μF; C₂=10μF; C₃=15μF

• 0.35

• 2.86

• 20.1

• 30.0

It is advisable to exceed the maximum holding value marked on the capacitor to keep it working.

• True

• False

If you have a 1 milli-farad capacitor and a 10 kilo-ohm resistor is series, what is the time constant?

• 1 second

• 10 seconds

• 100 seconds

• 1000 seconds

What is the equivalent or total resistance (R_e) across this circuit?

• 3 kΩ

• 13 kΩ

• 10 kΩ

• 18 kΩ

Which resistor will prevent the most current flow?

• 1000 Ω

• 100 Ω

• 10 Ω

• 1 Ω

Comparing series vs parallel resistor circuits:

• Series: voltage changes, current is constant

• Parallel: both voltage AND current change

• Series: Current changes, voltage is constant

• Parallel: neither voltage nor current change