If the voltage amplitude across an 8.50-nF capacitor is equal to
12.0 V when the current...
If the voltage amplitude across an 8.50-nF capacitor is equal to
12.0 V when the current
amplitude through it is 3.33 mA, the frequency is closest to:
A) 32.6 MHz
B) 5.20 MHz
C) 32.6 kHz
D) 5.20 kHz
E) 32.6 Hz
A 7.5–nF capacitor is charged up to 12.0 V, then disconnected
from the power supply and connected in series through a coil. The
period of oscillations of the circuit is then measured to be 8.60 X
10^-5 s. (a) Find the inductance of the coil; (b) the maximum
charge on the capacitor; (c) the total energy of the circuit; (d)
the maximum current in the circuit.
A 500 nF capacitor is initially connected to a 100 V DC
voltage source. At some long time later, the switch is flipped and
the capacitor is now connected to a 120 mH inductor.
a) What is the frequency of oscillation in the circuit after the
switch is flipped.
b) After the switch is filpped, what would the peak current
value be?
c) What is the maximum possible value for the energy stored in
the inductor?
d) The energy in...
A 120 V rms voltage at 60.0 Hz is applied across an inductor, a
capacitor, and a resistor in series. If the peak current in this
circuit is 0.84840 A, what is the impedance of this circuit?
Find the voltage ΔV1 across the first capacitor.
Express your answer in terms of ΔV.
Find the charge Q on the first capacitor.
Express your answer in terms of C and ΔV1.
Using the value of Q just calculated, find the equivalent capacitance Ceq for this combination of capacitors in series.
Express your answer in terms of C.
An 8.5 nF capacitor is charged up by a 20 V battery. The battery
is removed and replaced with a coil of wire. It then takes 7.3 x
10-5 s for this now LC circuit to undergo a full charging cycle.
(a) Calculate the inductance of the coil
(b) Calculate the total energy of the circuit
(c) Calculate the charge on the capacitor after 1 x 10-5 s.
An AC voltage with an amplitude of 130 V is applied to a series
combination of a 224 μF capacitor, a 114 mH inductor, and a 15.7 Ω
resistor.
Calculate the power dissipated by the circuit at a frequency of
50.0 Hz.
Calculate the power factor at this frequency.
Calculate the power dissipation
at a frequency of 60.0 Hz.Calculate the power factor at this
frequency.
Calculate the power factor at this frequency.
A capacitor with capacitance 6.00 × 10−5 is charged by
connecting it to a 12.0 V battery. The capacitor is disconnected
from the battery and connected across an inductor with L=1.50
H.
What is the initial energy stored in the capacitor?
What are the angular frequency of the electrical oscillations
and the period of the
oscillations?
What is the charge on the capacitor 0.0230 s after the capacitor
is connected to the
inductor? Interpret the sign of your answer.
What...
The potential difference across a charged capacitor is 22 V. The
capacitor discharges through a fixed resistor. After a time equal
to the time constant, the potential difference has reduced to
V. The magnitude of V is:
Qn 1
A capacitor is attached to a battery with a terminal voltage of
V. What happens to the capacitance of the capacitor if it is
attached to a new battery with a terminal voltage of 2V, twice as
large as the previous battery?
The new capacitance is twice as large.
The new capacitance is half as large.
The new capacitance is the same as it was before.
Question 2
A capacitor is attached to a battery with a voltage...
2. A 15-MΩ resistor and a 48-nF capacitor get connected in
series to a 15-V battery. a. How long will it be until the
capacitor is “fully” charged? b. If the battery is then
disconnected from the circuit, how long will it be until the
capacitor’s voltage is 9.0 V? What is the charge of the capacitor
at that moment? c. If we’d like the capacitor’s voltage in this
circuit to decrease from 15-V to 9.0-V in 1.5 seconds after...