Question

A series RL circuit consists of a 6.3 volt battery, a 175 ohm resistor and an inductor.

(a) If the battery has been connected for a long time interval, what is the current in the circuit?

(b) The battery is then removed from the circuit, so only the resistor and the inductor are connected in series. What is the inductance of the inductor if the current drops to half of its peak value in 2.00 ms?

(c) The current is then allowed to decrease to approximately zero and the battery is then reconnected. What time interval is required for the energy stored in the inductor to reach 90 percent of its maximum value?

Answer #1

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?

A circuit consists of a 45 V battery connected to a 15 ohm
resistor and a parallel combination of three 18 ohm resistors. What
is the current out of the source?

a 10-volt battery connected across a parallel combination of a
100 (ohm) fixed resistor and a variable resistor R. It can be shown
that the total current in the circuit I (in amperes, A) is the
following function of the variable resistor R (in ohms): I=
((100+R)/10R) If the variable resistance is decreased at a rate of
5 ohm/s, calculate the rate of change in the current with time when
the variable resistance is 50 ohms.

A 65 ohm resistor is connected in series to a 7.36 mH inductor,
an open switch, and a 27 volt battery. After the switch is closed,
how long will it take for the current in the inductor to reach 109
mA? Express your answer in milliseconds.

A 2.4 Henry inductor is connected in series with a 12.0 Volt
direct current battery, a 6.0 Ohm resistor, and a switch. The
switch is open so no current is flowing in the circuit. Explain
what happens to the current once the switch is closed.
Intelligently use "Faraday's law" and "Lenz's law" and "time
constant" in your explanation. Describe what a graph of current
versus time would look like, what it's value would be at time = 0,
and what...

At t = 0, a battery is connected to a series arrangement of a
resistor and an inductor. If the inductive time constant is 40.6
ms, at what time (in ms) is the rate at which energy is dissipated
in the resistor equal to the rate at which energy is stored in the
inductor's magnetic field?

A 4 µF capacitor is connected in series to a 1 Mega ohm resistor
and is charged with a 6 volt battery. What time does it take to
charge 63.2% of its maximum charge?
a.
2.77 secs.
b.
1.77 secs.
c.
4.00 secs.
d.
2.00 secs.

A RL series circuit has a 1Kohm resistor and an 1 mH inductor,
determine its time constant.

A 10^4 ohm resistor and a 40 microfarad capacitor are placed in
series with a 12 volt battery.
Find
(a) Time constant of the circuit.
(b) Charge, (c) Current, and (d) voltage on capacitor and
resistor at t=0 and at 2- time constants when circuit is
closed.

A 10.7-V battery, a 4.91-Ω resistor, and a 10.7-H inductor are
connected in series. After the current in the circuit has reached
its maximum value, calculate the following. (a) the power being
supplied by the battery (b) the power being delivered to the
resistor (c) the power being delivered to the inductor (d) the
energy stored in the magnetic field of the inductor

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 30 minutes ago

asked 36 minutes ago

asked 42 minutes ago

asked 46 minutes ago

asked 47 minutes ago

asked 52 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago