At a certain instant the current flowing through a 5.0-H inductor is 3.0 A. If the...
At a certain instant the current flowing through a 5.0-H
inductor is 3.0 A. If the energy in the inductor at this instant is
increasing at a rate of 3.0 J/s, how fast is the current
changing?
A) 0.80 A/s B) 0.40 A/s C) 0.10 A/s D) 0.20 A/s
Homework Answers
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At a certain instant the current flowing through a 5.0-H
inductor is 3.0 A. If the...
At the instant when the current in an inductor is increasing at a rate of 0.063...
At the instant when the current in an inductor is increasing at a rate of 0.063 A/s, the magnitude of the self-induced emf is 0.0240 v. (a) What is the inductance of the inductor? (b) If the inductor is a solenoid with 275 turns, what is the average magnetic flux through each turn when the current is 0.850 A? Wb
Need a help from 7 through 12 7. A square coil is in a uniform magnetic...
Need a help from 7 through 12
7. A square coil is in a uniform magnetic field that is perpendicular to the plane of the coil and directed into the screen, as shown. If this magnetic field begins to increase in magnitude what will the induced current in the coil be? a. directed into the screen b. zero C. clockwise d. counter-clockwise e. directed out of the screen 8. A 0.20 H inductor is located in a branch of some...
Fig.1 9. A series RCL circuit contains a 148- 2 resistor, a 1.50-uF capacitor, and a...
Fig.1 9. A series RCL circuit contains a 148- 2 resistor, a 1.50-uF capacitor, and a 35.7-mH inductor. The generator has a frequency of 512 Hz and an ms voltage of 25.0 V. Determine resonance frequency in the circuit. (a) 512 Hz (5) 688 H2 (c) 800Hz (d) 1024 Hz (d) None 10. Find the inductance in a coil if the magnitude of the average induced emf is 19.5 mV and the current in changes from 0.20 A to 1.5...
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. What is the init...
At t = 0, the current through a 65.0 mH inductor is 52.0 mA and is increasing at the rate of 100 mA/s. What is the initial energy stored in the inductor? ________8.788e-5____________ J How long does it take for the energy to increase by a factor of 10 from the initial value? _________________ s Help for the second part please, if you could show an equation that would be great! Thanks!
SOLVE BY USING MATLAB 6. For the sequential circuit shown in Figure, the current flowing through...
SOLVE BY USING MATLAB
6. For the sequential circuit shown in Figure, the current flowing through the inductor is zero. At t = 0, the switch moved from position a to b, where it remained for 1 s. After the 1 s delay, the switch moved from position b to position c, where it remained indefinitely. Sketch (plot) the current flowing through the inductor versus time. 50 Ohms / 200 H mm M + 40V 150 Ohms 350 Ohms 1
The length l, width w, and height h of a box change with time. At a certain instant the...
The length l, width w, and height h of a box change with time. At a certain instant the dimensions are l = 5 m and w = h = 2 m, and l and w are increasing at arate of 3 m/s while h is decreasing at a rate of 4 m/s. At that instant find the rates at which the following quantities are changing.Find Volume.__________ m^3/sFind Surface Area.__________m^2/sFind length of the diagnol.(find answer to two decimal places)__________m/s
A battery is connected in series to an inductor and a resistor. After a long time,...
A battery is connected in series to an inductor and a resistor. After a long time, assuming the battery does not weaken, how is the current through the inductor changing? Select One of the Following: (a) The current through the inductor is approximately zero. (b) The current through the inductor is approximately constant, but non-zero. (c) The current through the inductor continues to increase at the rate it was increasing when the battery was first connected. (d) The current through...
What is the time constant of this circuit? What is the current through the inductor at...
What is the time constant of this circuit? What is the current
through the inductor at time t = 0.25s? What is the maximum current
through the inductor? How much energy is stored in the inductor at
max current?
S1 dosed at t=0 S1 10 Ohms 1 Ohm 10 H 10 Ohms 5V _ 10 Ohms
An inductor with an inductance of 2.30 H and a resistance of 7.50 ? is connected...
An inductor with an inductance of 2.30 H and a resistance of 7.50 ? is connected to the terminals of a battery with an emf of 6.00 V and negligible internal resistance. (a) Find the initial rate of increase of current in the circuit. A/s (b) Find the rate of increase of current at the instant when the current is 0.500 A. A/s (c) Find the current 0.250 s after the circuit is closed. A (d) Find the final steady-state...
31. For the following LR circuit, emf-25V, R 5Ω, and L-SH. At a certain time a...
31. For the following LR circuit, emf-25V, R 5Ω, and L-SH. At a certain time a current of 4A is going through the resistor. a. What is the potential difference across the inductor at this time? b. Draw the positive and negative sides of the inductor at this time. c. Which direction is the induced current flowing through the inductor at this time? d. Is the current through the resister increasing or decreasing at this time?
At the instant when the current in an inductor is increasing at a rate of 0.063 A/s, the magnitude of the self-induced emf is 0.0240 v. (a) What is the inductance of the inductor? (b) If the inductor is a solenoid with 275 turns, what is the average magnetic flux through each turn when the current is 0.850 A? Wb
Need a help from 7 through 12
7. A square coil is in a uniform magnetic field that is perpendicular to the plane of the coil and directed into the screen, as shown. If this magnetic field begins to increase in magnitude what will the induced current in the coil be? a. directed into the screen b. zero C. clockwise d. counter-clockwise e. directed out of the screen 8. A 0.20 H inductor is located in a branch of some...
Fig.1 9. A series RCL circuit contains a 148- 2 resistor, a 1.50-uF capacitor, and a 35.7-mH inductor. The generator has a frequency of 512 Hz and an ms voltage of 25.0 V. Determine resonance frequency in the circuit. (a) 512 Hz (5) 688 H2 (c) 800Hz (d) 1024 Hz (d) None 10. Find the inductance in a coil if the magnitude of the average induced emf is 19.5 mV and the current in changes from 0.20 A to 1.5...
SOLVE BY USING MATLAB
6. For the sequential circuit shown in Figure, the current flowing through the inductor is zero. At t = 0, the switch moved from position a to b, where it remained for 1 s. After the 1 s delay, the switch moved from position b to position c, where it remained indefinitely. Sketch (plot) the current flowing through the inductor versus time. 50 Ohms / 200 H mm M + 40V 150 Ohms 350 Ohms 1
What is the time constant of this circuit? What is the current
through the inductor at time t = 0.25s? What is the maximum current
through the inductor? How much energy is stored in the inductor at
max current?
S1 dosed at t=0 S1 10 Ohms 1 Ohm 10 H 10 Ohms 5V _ 10 Ohms
31. For the following LR circuit, emf-25V, R 5Ω, and L-SH. At a certain time a current of 4A is going through the resistor. a. What is the potential difference across the inductor at this time? b. Draw the positive and negative sides of the inductor at this time. c. Which direction is the induced current flowing through the inductor at this time? d. Is the current through the resister increasing or decreasing at this time?
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