CBSE Class 12-science Answered
plz ans it sir.
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Asked by abuzerzain72 | 27 May, 2020, 20:28: PM
The resistance in the middle has no contribution during the charging process of capacitor C as it does not change the potential difference across RC combination nor the current flowing through it.
Thus, time constant
t1 = RC ...(1)
Discharging of the C takes place R+R = 2R (resistors are in series)
thus,
t2 = Req C = 2RC ...(2)
Thus,
From (1) and (2),
![t subscript 1 over t subscript 2 equals fraction numerator R C over denominator 2 R C end fraction space equals space 1 half space
a n d space
t subscript 1 space plus thin space t subscript 2 space equals space R C thin space plus 2 R C space equals space 3 R C](https://images.topperlearning.com/topper/tinymce/cache/3b8471b5ec29c9c05b58351caf4c258d.png)
Thus, both options (a) and (b) are correct.
Answered by Shiwani Sawant | 28 May, 2020, 16:51: PM
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