200-mA current flows in a small solenoid which stores 20 μJ of magnetic energy. The inductance of the solenoid is equal to what? ( the unit for the options is mH) a. 0.20 b.0.25 c.0.5 d.1.0 e. 2.0

Q: A conducting ring is placed such that it is lying flat in the xy-plane. A magnetic field exists in…

A:

Q: An air-core solenoid with 64 turns is 8.00 cm long and has a diameter of 1.20 cm. When the solenoid…

A: L=μ0N2AL    =μ0N2πd24L=4π×10-7  H/m6423.141.20 cm1 m100 cm248 cm1 m100 cm=72.7×10-7 H1 μH10-6…

Q: Suppose a motorcycle increases the downward componentof the magnetic field within a loop only from…

A: side of square,  s =0.75 m  induced emf, e = 1.4 x 10-4 V Change in magnetic field, dB = (1.9 -1.2)…

Q: The conducting bar in the figure is 0.1 m long and moves to the right with a speed of 10 m/s across…

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Q: The energy stored in a solenoid inductor is 28.4 J. The solenoid is .876 m long and has a radius of…

A:

Q: At the instant a current of 0.80 A is flowing through a coil of wire, the energy stored in its…

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Q: A solenoid with an inductance of 14 mH is charged up from an initial current of 3.0 A to a current…

A: Given data:  Inductance (L) = 14 mH = 14×10-3 H Initial current (Ii) = 3.0 A Final current (If) =…

Q: Express the current I in terms of B, N and d.  Calculate the numerical value of I in amps.

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Q: 3. A wire is moving on frictionless rails in a uniform magnetic field, as shown to the right. The…

A: We have a wire of length L=5 cm=0.05 m which is moving along a rail experiencing a magnetic field of…

Q: A magnet is moving toward a solenoid and a potential difference is induced between the two ends of…

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Q: The self-inductance of a coil is 50 mH. What is the emf induced when the current in the coil…

A:

Q: A solenoid has a length of 30.0 cm and cross-sectional area 0.750 cm?, contains 500 turns and…

A: Given: Length of solenoid, l=30.0 cm Cross  sectional area , A=0.750 cm2  Number of turns, N= 500…

Q: A coil has a self-inductance of 50 [?H] and a resistance of 3.5 [Ω]. It is connected to a 9.0 [V]…

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Q: A transformer has 20 turns of wire in its primary coil and 50 turns of wire in its secondary coil.…

A: Given data:  Number of turns in primary coil (N1) = 20 turns Number of turns in secondary coil (N2)…

Q: A square wire loop is enclosing a circle loop copper ring. They both lie in the same plane. The…

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Q: A circular coil of 50 turns and radius 8.0 cm is placed with its plain oriented at 90ﾟ to a magnetic…

A: Given data: Number of turns in the coil, N=50 The radius of the coil, r=8.0 cm=0.08 m The angle of…

Q: A 200 turn, 4.0 cm diameter solenoid is placed in a magnetic field of 0.45 T pointing into the page.…

A: a. Lenz’s law requires that the solenoid opposes any quick changes in the external magnetic field by…

Q: Consider a solenoidal coil initially carrying a time- varying current i(t) wrapped around a second…

A: Consider a solenoidal coil initially carrying a time- varying current i(t) wrapped around a second…

Q: solenoid has the following dimensions. inner diameter d = 5.12 cm length L = 46.7 cm When a current…

A: Given : d = 5.12 cm = 0.0512 m L = 46.7 cm = 0.467 m B = 5.40 T

Q: The figure shows a 10-cm-diameter loop in three different magnetic fields. The loop's resistance is…

A: The diameter of the loop is The resistance of the loop is The rate of change of the magnetic field…

Q: 2. Mr. Lewis loves electronics so much, one night after having a cup of coffee he decided to make an…

A:

Q: 00 wire loops are wound together. The area of each is 0.0025 m2. The loops begin with the area…

A: Using the concept of electromagnetic induction,

Q: A velocity selector in a mass spectrometer uses a 0.11 T magnetic field. a. What electric field…

A: A velocity selector is a device with plates containing charges due to which an electric field will…

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

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Q: cylindrical solenoid with 2,000 turns, a radius of 6.00 cm, and a length of 40.0 cm is initially…

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Q: A long solenoid is constructed in a physics lab. The solenoid is 196.0 cm long and it has 6938 turns…

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Q: 1. A metal rod of length L is pulled upward with constant velocity v through a uniform magnetic…

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Q: The current in an 80-mH inductor increases from 0 to 60 mA. How much energy is stored in the…

A: Given data:  Inductance (L) = 80 mH Current (I) = 60 mA Required: The energy stored in the inductor…

Q: The magnetic field inside of a very long solenoid is B = 0.024 T when the current = 2.3 A. The…

A: Given: Magnetic field inside solenoid, B=0.024 T Current, i=2.3 A Radius of solenoid, r=0.025 m To…

Q: A solenoid with an inductance of 14 mH is charged up from an initial current of 3.0 A to a current…

A:

Q: of the following statements are true? Choose all that apply. changing magnetic field will always…

A: There are statements given. We need to Choose true statements.

Q: What is the direction of the induced current if the B field suddenly increases (pointing out of…

A: 1) The increasing magnetic field is out of the page. So, it must be encountered by induced flux into…

Q: switch to the battery is closed at t = 0, find the time required for the current in the circuit to…

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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: energy stored

A:

Q: How much current is required if this four-winding solenoid can create 1mT? A. 3.98 A B. 6.10 A C.…

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Q: How much current does a long wire carry if it produces a magnetic field of magnitude 4.6 microteslas…

A: Strength of magnetic field (B) = 4.6 × 10-6 T  Field distance (r) = 0.21 m

Q: 40. A solenoid of length 15.0 cm with 2500 turns is placed coaxially in side the solenoid. The…

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Q: nowle 4. Inductance of a long solenoid: A long thin solenoid has N turns, a length W, area A and a…

A:

Q: A square coil of wire has 10 turns and an area of 20 cm^2. The square coil is located in a variable…

A: Number of turns (N) = 10 turns Area of each turn (A) = 20 cm2θ = 45oThe magnetic field is plotted…

Q: The energy stored in a solenoid inductor is 28.4 mJ. The solenoid has 425 turns, is .876 meters long…

A: Given: The energy stored in the solenoid inductor is 28.4 mJ. The number of turns is 425. The length…

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.