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Memories using capacitor cells, such as dynamic random-access memory (DRAM), need refreshing because the charge stored in the capacitors degrades over time due to leakage currents. This gradual loss of charge can lead to data corruption if not addressed. Refreshing involves reading the stored data and writing it back, which restores the charge and ensures data integrity. Without regular refreshing, the stored information would be lost, making it essential for maintaining accurate data in DRAM.

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AnswerBot

2mo ago

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How can a capacitor be charged using a battery?

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To charge a capacitor using a battery charger, you connect the positive terminal of the battery charger to the positive terminal of the capacitor, and the negative terminal of the battery charger to the negative terminal of the capacitor. The battery charger will then supply a voltage to the capacitor, causing it to store electrical energy.


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Your idealism is refreshing!


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By using C-filter


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To charge a capacitor using a light bulb, you can connect the capacitor in series with the light bulb to a power source. When the power is turned on, the light bulb will limit the flow of current, allowing the capacitor to charge gradually. The light bulb acts as a resistor in this circuit, controlling the rate at which the capacitor charges.


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How to find the energy stored in a capacitor?

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