The time required to fully charge a 1 uF capacitor in series with a 100k ohm resistor is
- 100 seconds.
- 100 milliseconds.
- 500 milliseconds.
Explanation from PART66Online
The time constant tau = RC = 100 kohm * 1 microF = 0.1 s = 100 ms. A capacitor is regarded as fully charged after about five time constants, so 5 * 100 ms = 500 ms. The 100 ms value is just one time constant, when the capacitor has reached only 63.2% of full charge.
H
hanozd asked · 31 Aug 2013
the ans should be 100 millisec. T=RC.
Community Comments (2)
P
PART66Online
1 Sep 2013
Hello.
You are wrong.
RC is not a time of full charge, it is time constant.
So, time constant is 100 ms. Time-constant is time to reach 63.2% of full charge. Time to fully charge = 5 * TC
So, time to full charge is 500 ms.
You are wrong.
RC is not a time of full charge, it is time constant.
So, time constant is 100 ms. Time-constant is time to reach 63.2% of full charge. Time to fully charge = 5 * TC
So, time to full charge is 500 ms.
P
PART66Online
1 Sep 2013
Short explanation here: uk.answers.yahoo.com/question/index?q...
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