An electromagnet can be modeled as an inductor in series with a resistor. Consider a large electromagnet of inductance L = 12.0 H and resistance R = 4.50 V connected to a 24.0 V battery and switch as in Figure P20.43. After the switch is closed, find (a) the maximum current carried by the electromagnet, (b) the time constant of the circuit, and (c) the time it takes the current to reach 95.0% of its maximum value.

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Q: Three inductors with inductances L1, L2, and L3 are connected in series. Assuming that they are…

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Q: A large research solenoid has a self-inductance of 25.0 H. (a) What induced emf opposes shutting it…

A: Solution: (a) The self inductance of the solenoid is calculated from relation, emf=L∆i∆t Here,L is…

Q: The battery terminal voltage in Figure P20.43 is ε = 9.00 Vand the current I reaches half its…

A: Current at time t = 0 is maximum in the circuit when the switch is just closed.The expression for…

Q: The figure below shows a circuit consisting of a 12.0 V battery in series with an inductor with…

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Q: 20) S R2 An inductor with inductance L = 0.5 H and negligible resistance is connected to a battery,…

A: You have posted 2 different questions. As per our policy, we are supposed to answer only one…

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A: According to the Bartleby guideline, only three questions can be solved at one time, post the…

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A: ELECTROSTATICS

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Q: solenoid with inductance L = 6.30 μΗ is connected in series with a resistor R 1.20 kO. At time t 0,…

A: (a)Current is given by,

Q: The figure below shows a circuit consisting of a 18.0 V battery in series with an inductor with…

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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: An LR circuit is hooked up to a battery as shown in the figure, with the switch initially open. The…

A: For charging of an inductor i=VR(1-e-RtL)

Q: A solenoid having an inductance of 9.44 uH is connected in series with a 0.927 kQ resistor. (a) If a…

A: Since there are two questions

Q: 24-V battery is connected in series with a resistor and an inductor, with R = 3.8 Ω and L = 2.4 H,…

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Q: A 24-V battery is connected in series with a resistor and an inductor, with R = 8.8 N and L = 2.0 H,…

A: Given, V = 24 V R = 8.8 ohms L = 2 H   The expression for current in Rl circuit is I=εR(1-e-tL)

Q: Inductor 1 stores the same amount of energy as inductor 2, although its inductance is only half the…

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Q: 12 volt battery is connected to two resistors and an inductor. Switch S hasen open for a long time…

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Q: The figure below shows a circuit consisting of a 24.0 V battery in series with an inductor with…

A: It is given that, V=24 V, L=10.5 H, and R=8.00 Ω.

Q: A 1.65 H inductor in an RL circuit (with resistance 1.8 Ω) is initially carrying a current of 4.95…

A: Given that:- Inductance of inductor=L=1.65H

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: An inductor that has an inductance of 16.0 H and a resistance of 24.0 2 is connected across a 100 V…

A: inductance=16 Hresistance=24Ωvoltage=100 v

Q: An inductor L=47 H is connected in series with a resistor R=25 ohms and a voltage source V=12 V and…

A: Inductance,L=47 H Resistance, R=25 ohm Voltage,v=12 volt

Q: A solenoid having an inductance of 7.82 uH is connected in series with a 1.68 kN resistor. (a) If a…

A: Given Inductance of the inductor is L=7.82 μH=7.82×10-6 Hz Resistance of the resistor is R=1.68…

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Q: An electrical engineer connects an inductor and initially uncharged capacitor in series, and notes…

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Q: The peak voltage across an inductor and the peak current through an inductor are in phase.…

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Q: An electromagnet can be modeledas an inductor in serieswith a resistor. Consider a…

A: a)Maximum current through the electromagnet is,Answer: 5.33 A

Q: 11) h y L Calaulate the inductance of the very long conductive wire that carries current I and the…

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Q: Consider the RL circuit below. All the resistors have size 6 k 2, the inductor has size 5 mH, and…

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Q: Calculate the inductance of the very long conductive wire that carries current I and the conductive…

A: We need to calculate mutual inductance between the long wire and the shown loop.

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: A resistor and inductor are connected to a 9.0 V battery by a switch as shown. The moment the switch…

A: Given information: The symbols used are the same as given in the question.

Q: A 12.0 V battery is connected into a series circuit containing a 16.0 ohms resistor and a 1.90 H…

A: Current through a R-L circuit at any time t is given by:          i(t)=i0[1-e-RLt]         where,…

Q: The figure below shows a circuit consisting of a 15.0 V battery in series with an inductor with…

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Q: question part d is 100 mA not 100 Ma. Please help solve part d. Thanks!

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Q: A 24.0-V battery is connected in series with a resistor and an inductor, with R = 9.20N and L = 9.20…

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Q: Rank the following inductors in order of the potential difference Vab , from most positive to most…

A: Introduction: The potential difference of an inductor is directly proportional to the rate of change…

Q: A solenoid having an inductance of 6.05 µH is connected in series with a 1.17 k2 resistor. (a) If a…

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Q: The 4.00 A current through a 1.30 H inductor is dissipated by a 2.00 Ω resistor in a circuit like…

A: Since there are multiple sub parts posted, we will answer the first three sub parts. a) The equation…

Q: A solenoid having an inductance of 6.30 mH is connected in series with a 1.20 k resistor. (a) If a…

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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.