An 9.5 H inductor is connected in series to a 18 V battery, a resistor, and a switch which has been open for a long time. If the current through the inductor takes 7.1 s to reach 80 percent of its final value, what is the resistance? (in Ω)  1.34 Ω  2.15 Ω  0.30 Ω  3.81 Ω

Q: The switch in a R-L circuit is closed allowing current to flow from a 12 volt battery. If the…

A: In R-L circuit, The potential difference of the battery is V = 12 V. The resistance of the resistor…

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Q: The battery terminal voltage in the figure below is E = 8.30 V and the current I reaches half its…

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Q: A capacitor with a capacitance 5.00 × 10-5 F is charged by connecting it to a 12.0 V battery. The…

A: Given:Max charge on capacitor, Qo = 6.00×10−4 Cangular frequency, ω = 120 rad/sMax voltage on the…

Q: A de RL circuit is formed out of a 25 mH inductor and a 20 f resistor. f these are connected through…

A: Time constant, τ=LR=25 mH20 Ω=1.25 ms Now, the current, It=1-eRtL At t=2 ms when switch is close,…

Q: 12 Ω resistor, 8mH inductor, and a 99μF capacitor are connected in series to a 50.0-V (r.m.s) source…

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Q: For an inductor ina circuit, how does potential energy change if the current is tripled? O3 times…

A: Potential energy stored in an inductor is given by  U = 1/2 LI2 Here, L is inductance I is current

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Q: A circuit consists of a large electromagnet that has an inductance of 48.0 H and a resistance of…

A: Inductance (L) = 48 H Resistance (R) = 7.9 ohm Vb = 250 V Maximum current (Im) = VbR= 2507.9= 31.645…

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Q: A series RL circuit includes a 4.05 V battery, a resistance of R = 0.555 Q, and an inductance of L =…

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Q: With the specific variables mentioned below, what is the number of secondary loops (Ns) of the…

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Q: A 1.25 H inductor in an RL circuit (with resistance 2.2 Ω) is initially fully charged. A switch is…

A: When the switch is at position 2, the expression for the current will be,

Q: An inductor of L = 7.75 H with negligible resistance is placed in series with a 8 = 14.9 V battery,…

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Q: The circuit below contains an inductor (L = 3 H) with an internal resistance R3 = 60 ohm. The other…

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Q: An inductor of L = 7.75 H with negligible resistance is placed in series with a 8 = 12.1 V battery,…

A: In the seriesL and RV=VR+VLV=IR+LdIdtI(t)=VR1-e-RtLt=0,I0=VR(1-e)I0=0given that,v=12.1 vR=3 ΩL=7.75…

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Q: , Problem 7: A 1.4 H inductor in an RL circuit (with resistance 2.25 Ω) is initially fully charged.…

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Q: A circuit contains a battery, a switch, an inductor, and a resistor. The circuit starts at the…

A: (a) Imax= 3.2 A (b) Time constant = 1.533 (c) t= 4.58 seconds

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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: A circuit consists of a large electromagnet that has an inductance of 48.0 H and a resistance of…

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Q: A series circuit contains a 4.90-H inductor, a 3.70-0 resistor, and a 9.50-V battery. The current is…

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Q: A series circuit contains a 4.80-H inductor, a 5.80-0 resistor, and a 7.00-V battery. The current is…

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Q: I connect a 1012 Ω resistor, a 1.2-µF capacitor, and a 0.85-H inductor in series with a V = 200…

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Q: 13 R2 R1 L An inductor with inductance L = 1 H and negligible resistance is connected to a battery,…

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Q: A series circuit contains a 4.60-H inductor, a 6.00-Ω resistor, and a 5.50-V battery. The current is…

A: L = 4.60 H R = 6 ohm V = 5.5 volts Imax = VR= 5.56= 0.916 A

Q: A 10-turn ideal solenoid has an inductance of 7.0 mH. When the solenoid carries a current that is…

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Q: The current i through a 4.7 H inductor varies with time t as shown by the graph of the figure. The…

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Q: An RL circuit consists of a switch, an emf source E, a 3.0 ka resistor, and a 1.0 H inductor. If the…

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Q: A series RL circuit includes a 4.05 V battery, a resistance of R = 0.555 Q, and an inductance of L =…

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Q: voltage across an inductor is 4.0 x 10-6 V when the current through it decreased at a rate of 4.0…

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Q: A 35 mH inductor is connected in parallel to an AC power supply with a voltage given by,…

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Q: A flat coil of wire has an inductance of 40.0 mH and a resistance of 5.80 N. It is connected to a…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: A 2H inductor is in series with two 4H inductors that are in parallel with each other. The effective…

A: Answer A: 4H For  inductance Circuit in parallel LP=L1L2L1+L2 Circuit in series LS=L1+L2

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.