Magnitude and direction of an induced emf may be obtained by applying a. Faraday's law, b. Ampere's law c. Lenz's law d. Kirchhoff's 2nd law O (a) and (b) O (b) and (d) O (b) and (c) O (a) and (c)
Q: 11. A coil of area 0.2 m² is placed in a magnetic field so that the normal to its area is in the…
A:
Q: A car generator turns at 480 rpm when the engine is idling. Its 240–turn, 4.40 by 8.00 cm…
A: Given the coil turns 480 rpm. The angular frequency of the coil ω=480…
Q: 1. For a long solenoid, we discovered in a problem-of-the-day that B = µ,nl, where n is the number…
A: (a)Consider l be the length of the solenoid.The expression for n in term of N, total number of terms…
Q: 3. You have a rod-shaped magnet, and a coil of wire connected to a voltmeter. Under which of the…
A: Faraday's law states that when a magnetic flux passing through a conducting loop changes, an…
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: Q1. The magnetic flux density B is constant. The shorting bar moves to the right with a velocity vy,…
A: We will use the induced emf formula,
Q: What would change when the orientation of the magnet is reversed? I. Direction of the induced…
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Q: Some traffic lights use “induction loops” to detect cars. Using Faraday’s Law, explain how an…
A: An induction loop is a device that can induce an electric current in a nearby wire, with the help of…
Q: Consider the arrangement shown in the Figure below. Assume R5 6.00 2, , I is 1.20 m, and a uniform…
A: Given: R= 6 ohm L = 1.20 m B= 2.50 T We have to calculate speed when current is 0.50 A The rate of…
Q: 2. The circuit shown below lies in a uniform magnetic field of magnitude 3.46 T that is directed…
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Q: Aplanar loop consists of seven turns of wire, each of which encloses 200 cm . It is onented…
A: A planar loop having number of turns N =7 Each loop encloses area A = 200 cm2 = 0.02 m2 rate of…
Q: #3. Complete the following statement: Along an equipotential surface, A) the magnitude of the…
A: An equipotential surface is the contact points in space having the same potential on the surface.…
Q: 7) Currents induced by rapid field changes in an MRI solenoid can, in some cases, heat tissue in the…
A: a) Change in magnetic field, ∆B=B2-B1∆B=0-1.6 ∆B=-1.6 T Length of the loop, L=8 cm=0.08 m Radius of…
Q: 11. A coil of area 0.2 m² is placed in a magnetic field so that the normal to its area is in the…
A:
Q: Andrea is working in a Biochemistry lab at UCI, when she discovers that the "athletes" at UCI all…
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Q: A car generator turns at 480 rpm when the engine is idling. Its 240–turn, 4.40 by 8.00 cm…
A: Number of turns (n) = 240 Area of rectangular coil (A) = 0.044×0.08 m2= 0.00352 m2angular velocity…
Q: The induced e.mf in a circuit always oppose the decay or growth of magnetic flux. This statement is…
A: Required : Law related to the statement.
Q: The current in a long solenoid of radius R and n number of turns per unit length is increasing…
A: The radius of the solenoid = RNumber of turns in the solenoid per unit length = nThe Current in the…
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- 8. A coil with an inductance of 1.5 H and a resistance of 10 Nis suddenly connected to an ideal battery with e = 130 v. At 0.12s after the connection is made, what is the rate at which: a. Energy is being stored in the magnetic field. b. Thermal energy is dissipating through the resistor. c. Energy is being delivered by the battery.25. A long, straight wire is in the same plane as a rectangular, conducting loop. The wire carries a constant current I as shown in the figure. Which one of the following statements is true? A. There will be no induced current. B. There will be a clockwise induced current in the loop. C. There will be a counterclockwise induced current in the loop. I27 A generator consists of eight turns of wire, and each turn has an area of 0.55 m^2. The loop rotates in a magnetic field of 0.35 T at constant frequency of 9.0 Hz. What is the maximum induced voltage in the loop? * G O 87 V O 5.9 V O 19 V 4.1 V
- 2. The figure below shows a 99-turn square coil rotating about a vertical axis at at ? = 1,520 rev/min. The length of a side of the coil is 20.0 cm. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 ✕ 10−5 T. a) What is the magnitude of the maximum emf (in mV) induced in the coil by the Earth's magnetic field? mV b) What is the orientation of the coil with respect to the magnetic field when the maximum emf occurs? The plane of the coil is oriented 45° with respect to the magnetic field. The plane of the coil is perpendicular to the magnetic field. The plane of the coil is parallel to the magnetic field.#82. The current in a very long solenoid with radius a and n turns per unit length varies over time as i(t) = Ct². Concentric with the solenoid is a conducting ring of radius r. a) Write an expression for the potential difference induced in the ring. b) Write an expression for the magnitude of the electric field induced at an arbitrary point on the ring. c) Is the ring necessary for the induced electric field to exist? Radius = r Radius i(t) = Ct² -O V = V(t) = a