Electronics - Capacitors - Discussion

Discussion Forum : Capacitors - General Questions (Q.No. 35)
35.

How long would it take the capacitor in the given circuit to completely discharge if the switch was in position 2?

22 ms
69 ms
345 ms
420 ms
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
18 comments Page 2 of 2.

AJAY REDDY P said:   1 decade ago
Can you explain about 5RC time discharge?

Sadhana said:   1 decade ago
Why it requires 5 RC time to discharge? Please explain.

Divu said:   1 decade ago
To discharge completely capacitor requires 5RC time.

Cornelius said:   1 decade ago
Why 5 time constants?

Kazim said:   1 decade ago
Time constant =RC
=(6.2+2.2)*1000*10^-6
=84 ms.

To completely discharge 5 time constants
=5RC
=84*5=420 ms.

Nithya said:   1 decade ago
@Vid your explanation is correct.

Vid said:   1 decade ago
When switch is at 1,capacitor stores max value of voltage. When switches to 2

time constsnt=RC
=(6.2+2.2)*1000*10*10^-6
=84 ms
to completely discharge 5 time constants
=5RC
=84*5=420 ms

Ashok said:   1 decade ago
Can anyone explain this..?


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