0
What is the time constant of a 2 microfarad capacitor in series with a 2 kilo ohm resistor?
Wiki User
∙ 12y ago
Time constant = capacitance x resistance --> farads x ohms simplifies to units of seconds.
(2 x 10-6 farads) x (2 x 103 ohms) = 4 x 10-3 seconds
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What is a geometric sequence?
In simpler terms, a geometric sequence is a sequence in which some constant (same) number multiplies every-time to give u the next number in the sequence. 2, 4, 6, 8, 10, 12 - The constant is 2 (E.g. 2 x 2 = 4) 6, 36, 216, 1296, 7776 - The constant is 6 (E.g. 6 x 6 = 36) ------------------------------------------------------------------------------------------------------------------ To figure out the constant number we just divide one number in the sequence by the one next to it on the left. E.g. 36/6 = 6 ++++ That first example, starting at 2 with a constant=2, is arithmetical not geometrical because it simply adds 2 each time. If the constant is a multiplier the series is 2, 4, 8, 16, 32, 64, ...
How do you tell the positive from the negative on a led?
Most LEDs have one lead longer than the other, or a flat side on the rim of the base, to indicate polarity. An LED that has neither of these must be marked in some other way. The only way to identify the polarity of an unmarked LED is to test it. A common AA or C battery in series with a small resistor of 50-100 ohms will do the job. The LED lights when the positive end of the battery ... possibly through the resistor ... goes to the positive end of the LED. (There is no harm to the LED when the battery is connected backwards and the LED doesn't light.)
What is Taylor series?
give the expansion of Taylor series
What is the history of arithmetic series?
who discovered in arithmetic series
What is the sum of an infinite geometric series is?
It depends on the series.
What is the time constant of a 0.001 microfarad capacitor and a 15000 ohm resistor connected in series in a dc circuit?
The same as the time constant of a 2.7 microfarad capacitor and a 33 ohm resistor connected in series.
What is the time constant of a .05 microfarad capacitor and a 200 kilo ohm resistor connected in series?
The time constant of a 0.05 microfarad capacitor and a 200 K ohm resistor in series is simply their product, 0.05 times 200,000, or 10,000 microseconds, or 10 milliseconds. (Farads times ohms = seconds)
What is the time constant of a series rc circuit consisting of a 2000 ohm resistor and a 10 microfarad capacitor?
2*103*10-5 = 2*10-2 Seconds = 20 milliseconds
What is one time constant of a 4.7 μF capacitor in series with a 22 kΩ resistor?
The time constant of a 4.7 µF capacitor in series with a 22 KΩ resistor is about 103 ms.
How do you change time constant of capacitor?
In theory ... on paper where you have ideal components ... a capacitor all by itself doesn't have a time constant. It charges instantly. It only charges exponentially according to a time constant when it's in series with a resistor, and the time constant is (RC). Keeping the same capacitor, you change the time constant by changing the value of the resistor.
What is the act of recovering energy from Capacitor?
A: It is called discharging a capacitor. The charge will follow the rules of a time constant set up by the series resistor and the capacitor. 1 time constant 63% of the charge will be reached and continue at that rate.
What is the equivalent capacitance of 20-microfarad capacitor and a 50-microfarad capacitor that are connected in series?
It's the same formula as resistors in parallel: C = C1xC2/(C1+C2) C= 20 x 50 / 70 = 14.3 uF.
How long does it take for a battery to charge a capacitor?
Usually a tiny fraction of a second. Actually it will depend on the characteristics of the the capacitor, and of the remaining circuit (mainly, any resistor in series). The "time constant" of a capacitor with a resistor in series to charge from 0 to a fraction of (1 - 1/e), about 68%, of its final value. This time is the product of the resistance and the capacitance. After about 5 time constant, you can consider the capacitor completely loaded for all practical purposes - i.e., it will be at the same voltage as the battery.
When a circuit consists of a capacitor and a resistor in series with a voltage source and the voltage across the resistor becomes zero then the capacitor is?
fully charged.
IN case of lossy capacitor what effect would be on series equivalent resistor?
In case of a lossy capacitor, its series equivalent resistance will be large.
What is the time constant of a series RC circuit consisting of a 2000 ohm resistor and a 10 microfarad capasitor?
In an RC network,the Time Constant τ (tau) is calculated as shown below. τ = RC For a 10 kOhm and 100 microFarad RC network: τ = 10000 x 100x10-6 τ = 1 second
How do you calculate the time constant in a series resistor?
A resistor by itself has no time constant. For a circuit to have a time constant it must contain either capacitors or inductors.
