A battery providing emf V is connected in series to a resistor R and an inductor L, and left until the current reaches a constant value. (a) What is the energy stored in the inductor in terms of V, R and L? Then, at t = 0, the battery is suddenly removed, so that only the inductor and resistor are left connected to each other in a closed circuit. (b) Derive an expression for the energy stored in the inductor in the new circuit without the battery. Sketch your expression as a function of time. (c) How long does it take for the energy stored in the inductor to decay to 1/9 of the initial value that you found in part (a)?

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A: Here given the circuit with a battery 12 volt. There be a inductor and a resistance of 150 ohm.At…

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A: Given V= 125 VC= 250 pF = 250 x 10-12 FL=225 mH =225 x 10-3 H

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A: Given: Inductance of an inductor (L) = 3.7 mH. Supply voltage (ε) = 4.6 V. Resistance (R) = 3.0 Ω.…

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Q: An electromagnet can be modeled as an inductor in series with a resistor. Consider a large…

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Q: A 24-V battery is connected in series with a resistor and an inductor, with R = 3.6 N and L = 4.6 H,…

A: Given data: Voltage V = 24 V Resistance R=3.6 Ω Inductance L = 4.6 H

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Q: An inductor has a current I(t) = (0.480 A) cos[(260 s1)t] flowing through it. If the maximum emf %3D…

A: NOTE: As per guidelines, I can solve first question only. If you need help with other questions,…

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Q: A 12.6-V battery is in series with a resistance of 0.304 Ω and an inductor. (a) After a long time,…

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Q: At t=0 the open switch in figure is closed. By using kirchhoff's rule for the instantaneous currents…

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Q: ... A V = 86-V source is connected in series with an R = 1.8-kΩ resistor and an L = 28-H inductor…

A: As given, Voltage, V=86 V Resistor, R=1.8 kΩ=1.8×103 Ω Inductor, L=28 H   At time t=0, the current…

Q: a 12.0 V ideal battery, a 20.0  resistor, and an inductor are connected by a switch at time t = 0.…

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Q: A 24-V battery is connected in series with a resistor and an inductor, with R = 5.8 N and L = 4.4 H,…

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Q: In the circuit, e = 100 sin( 157t + 30°). Calculate a) The sine expression for i b) The value of the…

A: a) i =e/j50 = 100∠30 °/j50        = 100∠30°/50∠90°        = 2∠-60° i(t) = 2sin (157t-60°) b) Given…

Q: A 12-V battery is connected in series with a resistor and an inductor, with R = 10 Q and L = 20.0 H,…

A: Given, Battery, V = 12 VInductor, L = 20.0 HResistor, R = 10 Ω

Q: A 24-V battery is connected in series with a resistor and an inductor, with R = 3.0 Ω and L = 2.4 H,…

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Q: A resistor and an inductor are wired in series with an ideal battery. The inductance of the inductor…

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Q: current through a 10-mH inductor increases from zero to 2 A, how much energy is stored in the…

A: Given  Self inductance L = 10 mH  = 10 ×10-3 H  Current I = 2 A

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Q: A 12 H inductor carries a current of 2.0 A.At what rate must the current be changed to produce a 60…

A: The induced emf in terms of inductance is

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Q: 30.21(An inductor with an inductance of 2.50 H and a resistance of  8.00Ω is connected to the…

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Q: A charged capacitor and an inductor are connected at time t = 0. In terms of the period T of the…

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Q: A cr IS constructed one inductor, one battery and a switch as shown. The values for the resistors…

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Q: A 24.0-V battery is connected in series with a resistor and an inductor, with R = 8.20 Ω and L =…

A: R = 8.2 ohm L = 2 H V = 24 volts

Q: An electromagnet can be modeled as an inductor in series with a resistor. Consider a large…

A: Given:inductance, L = 14.5 HResistance, R = 8Ωpotential, V = 18 V

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Q: An inductor (L = 0.39 H) and two resistors (R, = R, = 5.5 N) are connected to a battery with an emf…

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Q: At what rate would the current in a 100-mH inductor have to change to induce an emf of 100V in the…

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Q: Consider a 22.5 mH inductor that has a resistance of 4.1 Ω.  Part (a)  What is the time constant, τ,…

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.