A capacitor is charged to a voltage V and then disconnected from the battery. Wh
Practice Questions
Q1
A capacitor is charged to a voltage V and then disconnected from the battery. What happens to the charge on the capacitor if the distance between the plates is increased?
Charge increases
Charge decreases
Charge remains the same
Charge becomes zero
Questions & Step-by-Step Solutions
A capacitor is charged to a voltage V and then disconnected from the battery. What happens to the charge on the capacitor if the distance between the plates is increased?
Correct Answer: Charge remains constant.
Step 1: Understand that a capacitor stores electrical charge.
Step 2: When a capacitor is connected to a battery, it gets charged to a certain voltage V.
Step 3: After charging, if the capacitor is disconnected from the battery, it keeps the charge it has.
Step 4: Know that the charge on the capacitor does not change when it is disconnected from the battery.
Step 5: Increasing the distance between the plates of the capacitor affects its capacitance.
Step 6: Capacitance is a measure of how much charge a capacitor can store per unit voltage.
Step 7: When the distance between the plates increases, the capacitance decreases.
Step 8: Even though capacitance decreases, the charge on the capacitor remains the same because it is isolated.
Capacitance and Charge Relationship – The relationship between capacitance, charge, and voltage in a capacitor, particularly when isolated from a power source.
Effect of Plate Separation – Understanding how increasing the distance between capacitor plates affects capacitance and charge.
