help karo

m gettin sum diffrnt answers n d answers given r diffrnt

10 Answers

11
virang1 Jhaveri ·

A - p
B - p
C - s
D - r

Are the answers rite?

1
°ღ•๓яυΠ·

for b it shud be q na

39
Dr.House ·

no , virnag is correct. current decreases in both the cases exponentially.

11
virang1 Jhaveri ·

no
It has to be p

Reason.
See as the capacitor discharges the voltage is reduced . Reduction in voltage results in reduction of current . Since the voltage drops exponentially therefore current drops exponentially

1
°ღ•๓яυΠ·

oh ya

bt d answers r nt matchin

1
°ღ•๓яυΠ·

i guess d answer key is wrng

39
Dr.House ·

i=\frac{q_{0}}{\tau _{c}}e^{\frac{-t}{\tau _{c}}}

this is for 2nd option. so if u draw the i-t graph, u get a exponentially decreasing graph

39
Dr.House ·

well i am not sure about d but the others are right.

1
°ღ•๓яυΠ·

d answer key has gievn d answers as

A Q
B P Q
C none (dumbooo)
D R

39
Dr.House ·

well, how can p and q be the answers at the same time? i guess they mistyped current for charge in one of the options and kept the key unchanged.

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