post As a capacitor through a resistor, the voltage across the resistor is a max
ID: 1346864 • Letter: P
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post As a capacitor through a resistor, the voltage across the resistor is a maximum when a capacitor discharges through a resistor, the current in the circuit is a minimum Another way to describe the discharge time of an RC circuit is to use a time interval called the half-life, which is defined as the time for the capacitor to lose half its initial charge. Is the time constant longer or shorter than the half-life? Explain your reasoning. Does charging a capacitor in an RC circuit to 25% its maximum value take longer or shorter than one time constant? Explain. A capacitor and a resistor are connected through a switch to an emf. At the instant just after the switch is closed.Explanation / Answer
when the capacitor discharged through the reisistor
1 A The voltage across the resistor is maximum at the begining of the process
2 C The current in the circuit is minimum at the end of the end of the process
3 while discharging the capacitor in RC circuit initially the discharging rate is fastest at the start and
then tapers off as the capacitor looses charge at a slower rate.
time to loose half of the charge initially is less when compared to discharge the remainig half of the charge.
4 While charging a capacitor in RC circuit to reach 25 % of charge takes shorter time than to charge maximum charge
5 D A capacitor and resistor are connected through a switch to an emf, at the instant just after the switch is closed the voltage across the resistor is same as the emf
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