4.2.2 What is an RC Circuit?
Recall that the capacitance is defined as the proportionality
constant between the total charge accumulated by a capacitor and
the voltage difference across the circuit
Q = C△V (4.2)
In this equation, the charge Q is expressed in Coulomb (C), the
voltage △V, in volts (V) and the capacitance C in farads (F).
In this lab you will study both the charging and discharging
process of an RC circuit. During the charging process, an...
it is rc time constant problem.
1.
Solve the equation for a charging capacitor (Vc = Vs(1-e^(t/t))) for an RC Circuit for the ratio of the time (t) to the RC time constant (t):
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2.
Using the answer to Part 1, calculate the fraction of a time constant (t) to charge an initially uncharged capacitor to 10% of the source voltage (Vs).
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3.
Using the appropriate answers from Part 1, calculate the fraction of...
In an RC circuit as depicted
in the figure above, what happens to the time required for the
capacitor to be charged to half its maximum value if either the
resistance or capacitance is increased with the same applied
voltage? (Select all that apply.)
A.Increasing the resistance increases the time.
B.Increasing the resistance decreases the time.
C.Increasing the capacitance increases the time
D.Increasing the capacitance decreases the time.
Consider a RC circuit. At time t=0, the circuit is closed. ( a)
Draw how the current behaves with time. (b) What about the power
dissipated by the resistor ? (also draw it as a function of t)
Consider a RC circuit. At time t = 0, the circuit is closed.
(a) Draw how the current behaves with time
(b) What about the power dissipated by the resistor? (also draw
it as a function of t)
A.)
In the lab, you will determine a value for the time constant of
the RC circuit, by measuring the amount of time it takes the
capacitor voltage to increase from 0.0 V to ______ % of its maximum
value.
B.)
If you only have capacitors of one value, you can change the
total capacitance of the circuit by using combinations of
capacitors. Assuming that all the capacitors have the same value,
how could you increase the total capacitance?
Options:...
What is the maximum charge on a capacitor in an RC
circuit?
As the capacitor in an RC circuit charged, what is the current
as a function of time?Explain your answer physically.
1.5 V batteries are usually connected in series. Would the
batteries last longer or shorter if they were connected in parallel
instead?