Question

4) A battery (DC battery) is connected in series to a 14 milli-henrie inductor and a 4 Ohm resistor. After 6 milli-seconds, the battery is disconnected. 5 milli-seconds after the battery has been disconnected, the current in the circuit is 3.8 amps. What was the voltage of the battery that was disconnected in volts?

Answer #1

A battery (DC battery) is connected in series to a 13
milli-henrie inductor and a 6 Ohm resistor. After 6 milli-seconds,
the battery is disconnected. 3 milli-seconds after the battery has
been disconnected, the current in the circuit is 2.3 amps. What was
the voltage of the battery that was disconnected in volts?

part 1
A 48 volt battery (DC) is connected in series to a 10
milli-henrie inductor, and a 3 ohm resistor. What is the current in
the circuit, in amps, after 2.1 milli-seconds?
part 2
A 29 milli-henrie inductor and a 3 ohm resistor are connected
without a battery. The initial current in the circuit is 10 amps.
How long does it take, in milli-seconds, for the current to be 3.7
amps?

part A
A solenoid with 44 x 103 turns per meter, a cross sectional
radius of 0.5 m, and a length of 0.2 meters is used as to form an
inductor. Then a 8 x 103 volt battery (DC) is connected in series
to this inductor, a resistor of 2 kilo-Ohms, and another resistor
of 8 kilo-Ohms. After 14 milli-seconds, what is the power output of
the battery in kilo-watts?
part Aa.
A battery (DC battery) is connected in series...

5) A resistor of 6 kilo-ohms is connected in series to a
capacitor which are connected to a 10 volt battery. After some
time, the charge in the capacitor is 10 micro-coulombs. At that
time, the battery is disconnected and 6 milli-seconds after the
battery has been disconnected, the charge in the capacitor is 3.7
micro-coulombs. What is the voltage across the resistor 2.2
milli-seconds after the battery has been disconnected in volts?

A resistor of 8 kilo-ohms is connected in series to a capacitor
which are connected to a 6 volt battery. After some time, the
charge in the capacitor is 10 micro-coulombs. At that time, the
battery is disconnected and 7 milli-seconds after the battery has
been disconnected, the charge in the capacitor is 3.7
micro-coulombs. What is the voltage across the resistor 2.8
milli-seconds after the battery has been disconnected in volts?

A resistor of 10 kilo-ohms is connected in series to a capacitor
which are connected to a 10 volt battery. After some time, the
charge in the capacitor is 10 micro-coulombs. At that time, the
battery is disconnected and 5 milli-seconds after the battery has
been disconnected, the charge in the capacitor is 3.7
micro-coulombs. What is the voltage across the resistor 1.9
milli-seconds after the battery has been disconnected in volts?

A long solenoid is used as an inductor in an R-L circuit. The
solenoid has 165/m and a cross-sectional radius of 0.14 meters. It
is placed into a R-L circuit with a 18 Ohm resistor and a battery
initially. The battery is removed, the initial current is 3 amps,
and 8 milli-seconds after the battery has been removed, the voltage
across the inductor is 7 volts. What is the length of the solenoid
in meters?

A resistor of 5 kilo-ohms is connected in series to a capacitor
which are connected to a 9 volt battery. After some time, the
charge in the capacitor is 10 micro-coulombs. The battery is
disconnected and 26 milli-seconds after the battery has been
disconnected, the charge in the capacitor is 3.7 micro-coulombs.
What is the value of the capacitor in micro-farads?

An inductor (0.2 Henry) and a resistor (2ohms) are connected in
series with a battery of EMF 5.0 volts.
a) Draw the circuit (don't forget the switch)
b) At time t=0 and time= infinity find the current that passes
through the battery
c) What's the time constant for the circuit?
d) What's the back EMF provided by the inductor at t= 1.0
sec?
e) What's instantaneous energy saved in the inductor at time t=
1.0 sec?
f) What is the...

A capacitor C = 6 μF is connected in series with an inductor L =
135 mH and a battery V = 12 volts at t < 0. At t = 0, the
battery is disconnected.
a) What is the frequency of oscillations (ω& f) of this LC
circuit?
b) How many seconds will it take for the energy of the capacitor
to be 3 times larger than the energy of the inductor?
c) At 3 seconds, what is VL,...

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