Homework Answers
> ^Same for inductance (Part B).
B Janz Sun, Nov 14, 2021 8:38 PM
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Determining Inductance from the Decay in an L-R Circuit In this problem you will calculate the...
Decay of Current in an L-R Circuit
Learning Goal: To understand the mathematics of current decay in an L-R circuitA DC voltage source is connected to a resistor of resistance R and an inductor with inductance L, forming the circuit shown in the figure. For a long time before t=0, the switch has been in the position shown, so that a current I0 has been built up in the circuit by the voltage source. At t=0 the switch is thrown to remove the voltage source from the circuit. This...
A common demonstration of inductance employs a circuit such as the one shown in the figure...
A common demonstration of inductance employs a circuit such as
the one shown in the figure (Figure 1) . Switch S is closed, and
the light bulb (represented by resistance R1) just barely glows.
After a period of time, switch S is opened, and the bulb lights up
brightly for a short period of time. To understand this effect,
think of an inductor as a device that imparts an "inertia" to the
current, preventing a discontinuous change in the current...
An LR circuit includes a resistor of resistance R, an inductor of inductance L and a...
An LR circuit includes a resistor of resistance R, an inductor of inductance L and a battery of emf E = 10 V. At time t = 0 the current in the circuit is I = 0. At time t = 6.1 ms the current is I = 0.66 A. Assume R = 100ohms, find L.
Power in a Decaying R-L Circuit
This circuit has a current when . At the switch is thrown removing the DC voltage source fromthe circuit. The current decays to at time .a) What is the power, , flowing intothe resistor, , at time ?b) What is the power flowing into the inductor?
4) An ideal LC circuit comprises an ideal inductor having inductance L, a capacitor having capacitance...
4) An ideal LC circuit comprises an ideal inductor having inductance L, a capacitor having capacitance C, and a switch. The circuit does not include a battery nor does it include any resistance The switch is initially open and the initial charge on the capacitor is Qo. At time t o the switch is closed. Determine expressions (L, C, Qo) for the i) charge on the capacitor, and ii) the current flowing through the circuit at the following times: a)...
An R-L circuit has a 60 V battery, a 42 H inductor, a 24 ohm resistor,...
An R-L circuit has a 60 V battery, a 42 H inductor, a 24 ohm
resistor, and a switch S, in series, as shown. Initially, the
switch is open, and there is no magnetic flux in the inductor. At
time the switch is
closed. In Figure 21.23b, when the resistor voltage is equal to the
inductor voltage, the current in the circuit is closest to:
1.3 A
1.0 A
0.50 A
1.5 A
0.75 A
Problem 30.50 Part G Constants An inductor with inductance L 0.400 H and negligible resistance is connected to a batter...
Problem 30.50 Part G Constants An inductor with inductance L 0.400 H and negligible resistance is connected to a battery, a switch S, and two resistors, R1 13.0 2 and R2 15.0 2 (Figure 1). The battery has emf 96.0 V and negligible internal resistance. S is closed at t 0 What is the value of t for which is has half of the final value that you calculated in part E? Express your answer with the appropriate units. HA...
3) An ideal LC circuit comprises an ideal inductor having inductance L, a capacitor having capacitance...
3) An ideal LC circuit comprises an ideal inductor having inductance L, a capacitor having capacitance C, and a switch. The circuit does not include a battery nor does it include any resistance. The switch is initially open and the initial charge on the capacitor is Qo. The switch is closed at time 1-0. Show that the charge, 4, on the capacitor is given by the time dependent function 9(t) = Qocos(at) where o is given by W= Hint: Apply...
Learning Goal EVALUATE your answer To practice Problem-Solving Strategy 30.1: Inductors in Circuits A circuit has...
Learning Goal EVALUATE your answer To practice Problem-Solving Strategy 30.1: Inductors in Circuits A circuit has a 3.2 V battery connected in series with a switch. When the switch is closed, the battery powers two paths in parallel, one of which has a resistor of resistance R1 = 100 ? in series with an inductor of inductance L Part D In the previous part, you found the current supplied by the battery 0.3 ms after the switch is closed. What...
An L-C circuit has an inductance of 0.440 H and a capacitance of 0.220 nF ....
An L-C circuit has an inductance of 0.440 H and a capacitance of 0.220 nF . During the current oscillations, the maximum current in the inductor is 1.00 A . Part A: What is the maximum energy Emax stored in the capacitor at any time during the current oscillations? Express your answer in joules. Part B: How many times per second does the capacitor contain the amount of energy found in part A? Express your answer in times per second.
A common demonstration of inductance employs a circuit such as
the one shown in the figure (Figure 1) . Switch S is closed, and
the light bulb (represented by resistance R1) just barely glows.
After a period of time, switch S is opened, and the bulb lights up
brightly for a short period of time. To understand this effect,
think of an inductor as a device that imparts an "inertia" to the
current, preventing a discontinuous change in the current...
This circuit has a current when . At the switch is thrown removing the DC voltage source fromthe circuit. The current decays to at time .a) What is the power, , flowing intothe resistor, , at time ?b) What is the power flowing into the inductor?
4) An ideal LC circuit comprises an ideal inductor having inductance L, a capacitor having capacitance C, and a switch. The circuit does not include a battery nor does it include any resistance The switch is initially open and the initial charge on the capacitor is Qo. At time t o the switch is closed. Determine expressions (L, C, Qo) for the i) charge on the capacitor, and ii) the current flowing through the circuit at the following times: a)...
An R-L circuit has a 60 V battery, a 42 H inductor, a 24 ohm
resistor, and a switch S, in series, as shown. Initially, the
switch is open, and there is no magnetic flux in the inductor. At
time the switch is
closed. In Figure 21.23b, when the resistor voltage is equal to the
inductor voltage, the current in the circuit is closest to:
1.3 A
1.0 A
0.50 A
1.5 A
0.75 A
Problem 30.50 Part G Constants An inductor with inductance L 0.400 H and negligible resistance is connected to a battery, a switch S, and two resistors, R1 13.0 2 and R2 15.0 2 (Figure 1). The battery has emf 96.0 V and negligible internal resistance. S is closed at t 0 What is the value of t for which is has half of the final value that you calculated in part E? Express your answer with the appropriate units. HA...
3) An ideal LC circuit comprises an ideal inductor having inductance L, a capacitor having capacitance C, and a switch. The circuit does not include a battery nor does it include any resistance. The switch is initially open and the initial charge on the capacitor is Qo. The switch is closed at time 1-0. Show that the charge, 4, on the capacitor is given by the time dependent function 9(t) = Qocos(at) where o is given by W= Hint: Apply...
Learning Goal EVALUATE your answer To practice Problem-Solving Strategy 30.1: Inductors in Circuits A circuit has a 3.2 V battery connected in series with a switch. When the switch is closed, the battery powers two paths in parallel, one of which has a resistor of resistance R1 = 100 ? in series with an inductor of inductance L Part D In the previous part, you found the current supplied by the battery 0.3 ms after the switch is closed. What...
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> Time constant should be negative (for Part A).
B Janz Sun, Nov 14, 2021 8:37 PM