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So we use a capacitor to release energy into the circuit during these interruptions and that will smooth the power supply out to look more like DC. We can measure the capacitance and stored voltage using a multimeter. Not all multimeters have the capacitance function.
Therefore, by lowering the applied voltage, the power supply will be able to supply enough current to measure the high capacitance capacitor accurately. Table 1: Frequency and voltage settings for different capacitance range and class types.
High capacitance capacitors have very low impedance, therefore to supply enough current to make the measurement, the power supply needs more current than that supplied at 1.0 ± 0.2 Vrms. Therefore, by lowering the applied voltage, the power supply will be able to supply enough current to measure the high capacitance capacitor accurately.
The pulse duration T does not affect the size of the capacitor according to the equation given, but this does not seem right. Yes, assuming a 5ms pulse and 200mA, the pulse capacitor should be 10uF.
The electrons will build up on one plate of the capacitor while the other plate will in turn release some electrons. The electrons can’t pass through the capacitor though because of the insulating material. Eventually the capacitor is the same voltage as the battery and no more electrons will flow.
Not all multimeters have the capacitance function. You should be very careful with capacitors as they store energy and can hold high voltage values for a long time even when disconnected from a circuit.
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