Electrical Engineering - Capacitors - Discussion
Discussion Forum : Capacitors - General Questions (Q.No. 10)
10.
A 220 
resistor is in series with a 2.2 
F capacitor. The time constant is
resistor is in series with a 2.2 F capacitor. The time constant is48 s
s480 s
s2.42 s
s24 s
sDiscussion:
10 comments Page 1 of 1.
Sandeepa.k said:
7 years ago
Time constant =r*c.
Swamy meghavath said:
10 years ago
t = r*c.
t = 20*2.2.
t = 480.
t = 20*2.2.
t = 480.
Kartik said:
10 years ago
Because capacitor has of property of charging and discharging initially it starts charging from 0 hence the circuit has very low and resistance hence that is short circuit I flows through the circuit.
(1)
A k sahu said:
1 decade ago
Why should a capacitor acts as short circuit at initial switch on period in a circuit?
Sumanta ku. sahoo said:
1 decade ago
We know time constant = R*C.
So = 220*2.2 = 484.
So = 220*2.2 = 484.
(1)
Shivakumar said:
1 decade ago
Its should 484 or we came choose near value.
Sabari said:
1 decade ago
Time constant =r*c
=220*2.2=480
=220*2.2=480
SATYAM MISHRA said:
1 decade ago
This is right ans-484
T = RC = 220x2.2 = 484
T = RC = 220x2.2 = 484
Nirav jansari said:
1 decade ago
Time constant is equal to multiplication of resistance and capacitance.
Siva naik said:
1 decade ago
t=rc
time constant = resistance*capacitance
time constant = resistance*capacitance
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