2) A standard motional emf setup in the xy plane consists of a constant, uniform magnetic field which points into of the page and has magnitude 2 T everywhere. The circuit's entire resistance is 8 Ohms at the location shown. The movable rail (double-line on the bottom of the circuit) which completes the circuit can slide up and down. 35 cm i. If the induced current is flowing clockwise, which way is the bar sliding? A. Upward B. Downward C. It is stationary D. It could be sliding either way ii. If the induced current has magnitude 3 A, how fast is the bar moving? A. 0.75 m/s B. 4.3 m/s C. 16 m/s D. 34 m/s E. zero 75 cm B Slide m 802

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

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Q: The current in a coil changes steadily from 1.3 A to 2.5 A in the opposite direction, in 0.12 s. The…

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Q: 4a. Suppose a 42–turn coil lies in the plane of the page in a uniform magnetic field that is…

A: (4a) Number of turns ,n  = 42         Original area of of the coil, A = 0.290 m2          Time taken…

Q: rection as shown iform, on

A: The magnetic field can be calculated with the help of the Biot- Savart law, Gauss law and Ampere's…

Q: a square loop in the plane of the screen lies in a 0.55T constant magnetic field pointing out out…

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Q: An L = 57.0 cm wire is moving to the right at a speed of v = 8.10 m/s across two parallel wire rails…

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Q: Suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an…

A: Let the number of turns in the coil be N, the initial area of the coil be Ain, the final area of the…

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…

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Q: A square loop in the plane of the screen lies in a 0.550 T constant magnetic field pointing out of…

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Q: A air-filed solenoid 3.3 m diameter and length 23 cm, has 100 turns. If the current increases from 9…

A: (a) Let d denotes the solenoid’s diameter, A denotes the area, l denotes the solenoid’s length, N…

Q: 3. A rectangular loop consisting of 100 turns, measuring 60 cm x 80 cm. The loop is rotated with a…

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Q: A metal bar with length = 1.50 m is pulled to the right at a steady speed |v| = 5.0 m/s…

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Q: 4. Three copper frames are dragged through an external magnetic field in the direction s shown. The…

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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: In the figure, a 110-turn coil of radius 2.10 cm and resistance 6.80 N is coaxial with a solenoid of…

A: Number of turns , N = 110 Radius , r = 2.1 cm = 0.021 m Resistance , R = 6.8 Ω Number of turns per…

Q: "A square loop of wire is placed in a magnetic field that is perpendicular to its plane. The of each…

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Q: A seven-turn square-shape coil of sides 6.0 cm is placed in an external magnetic field of strength…

A: Faraday's law of electromagnetic induction: According to this law, the magnitude of the average emf…

Q: A loop of wire in the shape of a rectangle rotates with a frequency of 245 rotation per minute in an…

A: The maximum emf induced is  e = N B A w  where, N is the number of turns, B is the magnetic field, A…

Q: A uniform magnetic field B is perpendicular to the plane of a circular wire loop of radius r and…

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Q: A solenoid has n= 120 turns per meter, and it is filled with a ferromagnetic material (km = 65).…

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Q: In the image below, two conducting rings are in the same plane. The outer ring contains a resistor…

A: Current in inner ring = I  Resistance of the outer ring = R The magnetic flux due to inner ring…

Q: What is the maximum induced emf for the loop below if it is rotated around the y-axis given its area…

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Q: 1. The conductive bar m = 45g starts moving from rest, the magnetic field B = 2.8T, the length of…

A: It is given that,The mass of the conducting bar is m=45 g=0.045 kg.The magnetic field strength is…

Q: A circular loop with a radius of 9.0 cm with a resistance of 0.45 is placed within a uniform 0.35-T…

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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.