Question

which of the two circuits

Answer 1

its question 8

Answer 2

@phi @Nurali

Answer 3

@cwrw238

Answer 4

@Destinymasha

Answer 5

@hba

Answer 6

@dan815
@Dank_Lord
@SolomonZelman

Answer 7

Choose the circuit that has the fastest RC time constant. I assume the Rs are equal, and the Cs are equal.....is this the case. The time constant is R*C (R times C)

Answer 8

Hint: The series arrangement provides the smallest amount of capacitance

Answer 9

but how do I find the RC

Answer 10

You don't have to, just choose the one with the fastest (shortest amount of time)

Answer 11

so the parallel one which is B

Answer 12

The parallel arrangement provides the greater amount of capacitance thus the longest time constant.

Answer 13

ohhh yeah got it now
thnx alot

Answer 14

so circuit a ?

Answer 15

keep in mind you want to select the circuit with the shortest time constant.

Answer 16

A capacitor is usually considered fully charged in 5 time constants.

Answer 17

If you want to insure you have the circuit with the shortest time constant (RC) (uses the Greek letter tau) assign a typical value to the resistor and capacitor and then compute the RC time constant for each circuit. But your knowledge of circuit arrangements should allow you to choose without a whole bunch of math.

Answer 18

alright thnx alot so circuit a is the answer ??

Answer 19

Does circuit have the two capacitors connected in series?

Answer 20

yeah
but I'm afraid that I'm mixing between the parallel connection and the series connection

Answer 21

if you look at them there is a letter next to each one
isn't circuit A connected in series

Answer 22

I just looked at the drawing, and circuit a does have the two capacitors connected in series so that the total capacitanc is 1/2 C, so that means the time to charge up is quicker than circuit B, B has the longest time constant compared to circuit a.

Answer 23

thank you alot this is the best explanation I get by far I appreciate your work

Answer 24

Is this an electronics course, or physics class?

Answer 25

I have physics final tomorrow and I still have some more review prop I would really appreciate it if you help me out on the rest

Answer 26

O.K, but I did have trouble looking at your drawing, it was sideways lol.

Answer 27

hahahah I will make them better

Answer 28

It has been a long time since I worked with electronics, but if I can help I will try, but some parts may be unfamiliar now.

Answer 29

alright np
just try your best