Understanding Capacitors and Their Functions

What is the primary function of a capacitor in an electric circuit?

• To increase the current flow

• To store energy by separating charge

• To decrease the voltage

• To convert energy into light

When charging a capacitor, what happens to the charges on the two plates?

• Both plates gain positive charge

• Both plates gain negative charge

• One plate gains positive charge, the other gains negative charge

• Both plates remain neutral

Which component should be used instead of a light bulb to ensure constant resistance in the circuit described?

• 330 μF capacitor

• 100-Ω resistor module

• Current module

• Wire module

What does the capacitance of a capacitor measure?

• The amount of current it can pass

• The amount of charge stored per unit voltage

• The resistance to current flow

• The energy lost as heat

Why is it important to connect the voltage sensor with the positive lead on the same side as the positive terminal of the battery?

• To ensure accurate voltage readings across the capacitor

• To increase the charging speed

• To prevent the capacitor from discharging

• To reduce the resistance in the circuit

If a capacitor is marked 330 μF, what does this value represent?

• The maximum voltage it can handle

• The amount of charge it can store per volt

• The resistance of the capacitor

• The energy it can dissipate

• It is the time taken for the capacitor to fully discharge

• It is the time taken for the capacitor to reach half its maximum charge or voltage

• It is the time taken for the current to double

• It is the time taken for the resistance to halve

Which of the following best describes what happens if the resistance in the circuit is increased while charging a capacitor?

• The capacitor charges faster

• The capacitor charges slower

• The maximum charge stored increases

• The voltage across the capacitor decreases

Why is it necessary to replace the current module with a wire module in the described experiment?

• To increase the resistance

• To allow current to flow without additional resistance

• To measure the current more accurately

• To prevent the capacitor from charging

A student observes that the capacitor takes a long time to fully charge. What could be a possible reason for this?

• The resistance in the circuit is too low

• The capacitance is very high

• The battery voltage is too high

• The capacitor is connected in parallel with the battery