A coil with a self-inductance of 2.0 H carries a current that varies with time according to ?(?)=(2.0A)sin120??. Find an expression for the emf induced in the coil. The answer must be

Q: lowing through a solenoid of inductance 7.4 H.    Part(a): Determine the magnetic flux through the…

A: The Current in the solenoid of inductance is I = 3.9 A  The Inductance L = 7.4 H  Find:- Part(a):…

Q: Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at…

A: The rate of change of current,

Q: 6.0 μsμs after the switch of (Figure 1) is moved from 1 to 2, the magnetic energy stored in the…

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Q: 0 μsμs after the switch of (Figure 1) is moved from aa to bb, the magnetic energy stored in the…

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Q: 8. (a) A 40.4 mH inductor is connected as in the figure to an ac generator with Em = 30.0 V. What is…

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Q: In an oscillating LC circuit, when 85.1% of the total energy is stored in the inductor's magnetic…

A: Energy in LC oscillation circuit:

Q: Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at…

A:

Q: A toroidal solenoid has a cross-sectional area 2.1 cm² and a mean radius 6 cm consists of 740 turns…

A: A solenoid  is a type of electromagnet constructed by a helical coil of wire whose length is larger…

Q: At time t = 0, a 12.0 V potential difference is suddenly applied to the leads of a coil of…

A:

Q: The initial angular speed of the coil in the generator is 5.00 rad/s and the initial amplitude of…

A: the  emf induced is directly proportional to the angular speed . thus, as the angular speed increase…

Q: 30. A circular coil has 250 turns and radius 1.50 cm. When a current of 5.00 A flows in the coil,…

A: Part (30): Given: The number of turns is 250. The radius of the coil is 1.5 m. The current in the…

Q: A Tesla coil consists of a long solenoid with length L = 0.5 m that is closely wound with N1 = 1000…

A: Given data: The length of solenoid is L=0.5 m. The number of turns are, N1=1000N2=10 The area of…

Q: steadily from 1.3A to 2.5A in the opposite direction,in 0.12 s. The average emf induced in the coil…

A:

Q: In 3.0 s, the current in a particular RL circuit that consists of a battery, a resistor, and an…

A: Option (D) is correct.

Q: A coil with a self-inductance of 2.0 H carries a current that varies with time according to I(t) =…

A: The expression for find induced emf in the coil is ε=-LdIdt

Q: The time variation of the current in a 32.0-mH inductor is given by  I = 9.00 + 3.00t − 3.00t2,…

A: L = 32.0 mH = 32.0 x 10-3 H I = 9.00 + 3.00t − 3.00t2

Q: A coil is connected in series with a 14.4 kQ resistor. An ideal 64.8 V battery is applied across the…

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Q: A coil with 150 turns has a magnetic flux of 50.0 nT m2 through each turn when the current is 2.00…

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

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: Two coils are at fixed locations. When coil 1 has no current and the current in coil 2 increases at…

A:

Q: A coil of 15 turns and radius 10.0cm surrounds a long radius of 1.90 cm and 1.00*10^3 turns/meter.…

A: Induced emf ε=-Ndϕdt=-NddtBA=-Nddtμ0nIA=-Nμ0nAdIdt=-Nμ0nAddt7.00sin120t=-154π×10-7 Hm1.00×103…

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: d) A fully charged capacitor having a capacitance of 18.0 pF is connected directly across the…

A: (d) Write the given values with the suitable variables. C=18 pF=18×10-12 FL=4 mH=4×10-3 H Here, C is…

Q: The current in a coil drops from 3.4 A to 2.1 A in 0.48 s. If the average emf induced in the coil is…

A: Initial current is (I)i = 3.4 A  Final current is (I)f = 2.1 A  ∆t = 0.48 s  Average emf induced is…

Q: In a model AC generator, a 495 turn rectangular coil 10.0 cm by 23 cm rotates at 123 rev/min in a…

A: Given that--- In a model AC generator, a 495 turn rectangular coil 10.0 cm by 23 cm rotates at 123…

Q: Two coils are placed near each other and they have a mutual inductance of 887.4 mH. If the current…

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Q: The coil in an electromagnet has an inductance of 1.7 mH and carries a constant direct current of…

A: Given that, The inductance of a coil, L = 1.7 mH = 0.0017 H Initial value of current, Ii = 5.6 A…

Q: The current in a coil drops from 3.8 A to 1.8 A in 0.51 s. If the average emf induced in the coil is…

A:

Q: A small square loop of wire of side a2 is placed inside a large square loop of wire of size a1 (a1 >…

A: To determine,part (a)the mutual inductance(M)given,length of square loop(big)=a1length of square…

Q: 1. A time-varying current is allowed to pass through an inductor L, whose plot is presented. Which…

A: When there is motion of conductor in magnetic field, an emf is set. A current starts flowing. This…

Q: A coil is connected in series with a 11.9 kΩ resistor. An ideal 59.5 V battery is applied across the…

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Q: Two coils are wound around the same cylindrical form. When the current in the first coil is…

A: Given that, Two coils are wound around the same cylindrical form. When the current in thefirst coil…

Q: In an oscillating LC circuit, when 85.1% of the total energy is stored in the inductor's magnetic…

A: Given data:L Total energy =85.1%=0.851

Q: P12.15(a) Show that when the current in an isolated circuit element changes, the magnetic induction…

A: Solution 5(a): To prove ε = -LdIdt

Q: An electric current flows through a coil with an inductance of 6.7 mH. The graph shows the…

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Q: The frequency of oscillation of a certain LC circuit is 194 kHz. At time t = 0, plate A of the…

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Q: A 25 cm long solenoid of 100 turns with area of 9 cm2 has current of 1.5 A changing at a rate of 2…

A: Length, d = 25 cm = 0.25 m  Turns, N = 100  Area, A = 9 cm2 Current, I = 1.5 A  di/dt = 2 A/s

Q: In 3.0 s, the current in a particular RL circuit that consists of a battery, a resistor, and an…

A: Given, Resistance=3ohm Time=3s We have to find the inductance

Q: A coil of conducting wire carries a current i. In a time interval of At = 0.480 s, the current goes…

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Q: In the figure R1 = 4.00 N , and R2 = When the switch is opened after having been closed for a long…

A: The current through the inductor when the switch is unplugged is given by  I=I0e-tτ rearrange the…

Q: A series LC circuit contains a 100-mH inductor, a 36.0-mF capacitor and a 12-V battery. The period…

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Q: A long, straight current carrying solenoid creates a uniform magnetic field B=7mT inside itself when…

A: Mutual inductance b/w the loops M=4mH, rate of change of current in coil S1 dI1/dt=10 A/s and number…

Q: 7. A coil with a self-inductance of 2.0 H carries a current that varies with time according to I(t)…

A: Induced emf is given by Lenz's law which states that E=-LdIdt

Q: The frequency of oscillation of a certain LC circuit is 168 kHz. At time t = 0, plate A of the…

A: (a) There will be maximum positive charge in plate A again after integral multiple of the time…

Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.