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What size capacitor is capable of storing 10 mJ of energy with 100 V across its plates?
To find the size of the capacitor needed to store 10 mJ (0.01 J) of energy at 100 V, we can use the formula for the energy stored in a capacitor: ( E = \frac{1}{2} C V^2 ), where ( E ) is the energy, ( C ) is the capacitance in farads, and ( V ) is the voltage in volts. Rearranging the formula gives us ( C = \frac{2E}{V^2} ). Substituting in the values, we have ( C = \frac{2 \times 0.01 , \text{J}}{(100 , \text{V})^2} = \frac{0.02}{10000} = 2 \times 10^{-6} , \text{F} ) or 2 µF. Thus, a capacitor of 2 µF is required.
What else can I help you with?
Why is rectified voltage storge in a capacitor?
Because a capacitor is ideal for storing energy over short periods, as in a reservoir capacitor in a power supply.
What is capable of storing electrical energy in an electrostatic field?
condenser
What is the total capacitance of this arrangement the charge of each capacitor and the voltage across the last capacitor and the energy stored in it?
(a) what is the total capacitance of this arrangement (B) the charge stored on each capacitor (C) the voltage across the 50 micro farad capacitor and the energy stored in it. 20v and 20+30+50 micro farad
Where does the radio capacitor connect?
The radio capacitor typically connects between the radio circuit and the antenna or the tuning circuit. It helps in filtering and tuning by storing and releasing electrical energy, allowing for the selection of specific frequencies. In some designs, capacitors also connect across components like transistors to stabilize signals or across power supply lines to reduce noise. Proper placement is crucial for optimal radio performance.
What is capacitor function?
The capacitor is used to store the charge applied to it.This stored charge can be used to absorb voltage spikes and voltage drops.AnswerIt's a misconception that a capacitor stores charge. In fact, it stores energy. The net charge on a fully-charged capacitor is the same as on a fully discharged capacitor.
What is meant by capacitor charging problem?
storing of energy
What is the significance of the current across a capacitor in an electrical circuit?
The current across a capacitor in an electrical circuit is significant because it determines how quickly the capacitor charges or discharges. This current flow is crucial for storing and releasing electrical energy efficiently in various electronic devices and systems.
Does a compacitor store energy in an electrostatic field?
Yes, a capacitor stores energy by storing electric charge in an electrostatic field between two conductive plates. When a voltage is applied across the capacitor, it stores energy in the form of electric potential energy.
Why is rectified voltage storge in a capacitor?
Because a capacitor is ideal for storing energy over short periods, as in a reservoir capacitor in a power supply.
How does the energy stored in a capacitor change when the potential difference across it is doubled?
When the potential difference across a capacitor is doubled, the energy stored in the capacitor increases by a factor of four.
What does a capacitor?
Capacitor is an arrangement for storing large amounts of electric charge and Hence electric energy in a small space.
Can the voltage across a capacitor change instantaneously?
No, the voltage across a capacitor cannot change instantaneously. It takes time for the voltage across a capacitor to change due to the storage and release of electrical energy in the capacitor.
Which device is used for storing the electric charge?
A capacitor is a device used for storing electric charge. It consists of two conductive plates separated by an insulating material, which stores energy in an electric field when a voltage is applied across the plates.
What is capable of storing electrical energy in an electrostatic field?
condenser
How does current flow in a capacitor?
Current does not flow through a capacitor in the same way as through a resistor. Instead, when a voltage is applied to a capacitor, it charges up by storing energy in an electric field between its plates. This stored energy can then be released when the capacitor discharges.
How can you calculate the energy stored in a capacitor?
The energy stored in a capacitor can be calculated using the formula: E 0.5 C V2, where E is the energy stored, C is the capacitance of the capacitor, and V is the voltage across the capacitor.
How to calculate the energy stored in a capacitor?
The energy stored in a capacitor can be calculated using the formula: E 0.5 C V2, where E is the energy stored, C is the capacitance of the capacitor, and V is the voltage across the capacitor.
