NEET  >  Energy Stored in a Capacitor

# Energy Stored in a Capacitor Video Lecture - Physics Class 12 - NEET

## Physics Class 12

154 videos|444 docs|185 tests

## FAQs on Energy Stored in a Capacitor Video Lecture - Physics Class 12 - NEET

 1. What is the formula to calculate the energy stored in a capacitor?
Ans. The formula to calculate the energy stored in a capacitor is given by the equation: Energy (E) = 0.5 * C * V^2, where C represents the capacitance of the capacitor and V represents the voltage across the capacitor.
 2. How is the energy stored in a capacitor related to its capacitance and voltage?
Ans. The energy stored in a capacitor is directly proportional to both the capacitance and the square of the voltage across it. This means that increasing the capacitance or the voltage will result in a higher amount of energy being stored in the capacitor.
 3. Can the energy stored in a capacitor be negative?
Ans. No, the energy stored in a capacitor cannot be negative. Capacitors store energy in the form of an electric field, and energy is always considered positive. Even if the voltage across the capacitor becomes negative, the energy stored will still be positive.
 4. How does the energy stored in a capacitor affect its performance in an electronic circuit?
Ans. The energy stored in a capacitor determines its ability to discharge and provide power to other components in an electronic circuit. Capacitors with higher energy storage capabilities can release energy more slowly and consistently, while those with lower energy storage may discharge quickly. The energy stored also affects the overall stability and performance of the circuit.
 5. How can the energy stored in a capacitor be utilized in practical applications?
Ans. The energy stored in a capacitor can be utilized in various practical applications. Capacitors are commonly used in electronic devices to store energy and provide power during short-term voltage spikes or power interruptions. They are also used in energy storage systems, such as electric vehicles, where they can release stored energy to power the vehicle. Additionally, capacitors are used in filters, timing circuits, and oscillators in electronic circuits.

## Physics Class 12

154 videos|444 docs|185 tests

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