6. Write down Faraday's Law of Electromagnetic Induction and explain its components. Induced Voltage = Induced Current = Can you describe Lenz's Law?
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: Which of the following statements are FALSE? Tick the box to the left of any that you consider…
A:
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: 2. Suppose we have a rectangular magnet with a north and south ends. We can then create an imaginary…
A: Basically magnetic monopole is such a hypothetical magnet in which there is existance of only one…
Q: the eddy currents in fi 122 16
A: a)The direction of the eddy currents induced in the can as it enters the magnetic field is option 2:…
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: 14. Acceleration in a cyclotron. Suppose in a cyclotron that B = 2B and E, = E cos w t E, = - E sin…
A: Given : Magnetic field, B⇀ = B z^ Electric field, E⇀ = E cosωc t x^ - E sinωc t y^ + 0 z^…
Q: 6. Consider two point charges of charge q and a fixed distance d apart that orbit around each other…
A: Given, two-point charges with charge q and -q and apart from a fixed distance d, orbiting around…
Q: Which of the following statements best describes Oersted’s Principle ? a. A current carrying…
A: Oersted's principle states that when a steady electric current passes through a conducting wire it…
Q: a. Draw the earth magnetic field and show where the intensity is the strongest and weakest. b. Show…
A: This question can be solved by using the various concepts of physics.
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…
Q: 8. A coil with an inductance of 1.5 H and a resistance of 10 Ais suddenly connected to an ideal…
A: Given data The inductance of the coil is L = 1.5 H. The resistance of the coil is R = 10 Ω. The emf…
Q: 29. You can change the magnetic flux through a given surface by a. changing the magnetic field. b.…
A: The magnetic flux through a given surface is given by the formula Φ = B⋅A⋅cosθ, where B is the…
Q: 2. Jason also makes a home-made power supply to illuminate battery-powered glowing lightsabers. a.…
A: Faraday's laws of electromagnetism state that whenever the magnetic flux associated with a…
Q: The time-averaged intensity of sunlight that is incident at the upper atmosphere of the earth is…
A: Correct option e. 1020 N/C
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- 5. A circular coil with a radius of 5 cm is made up of 30 loops. Its orientation makes the magnetic field lines normal to the area of the coil. If the magnetic field is varied from 0.25 T to 0.45 T in 1 hour, what is the average induced EMF in the coil?a.) a current in the CW direction to enhance the decreasing north magnetic field. b.) a current in the CW direction to enhance the decreasing south magnetic field. c.) a current in the CW direction to oppose the increasing south magnetic field. d.) a current in the CW direction to oppose the increasing north magnetic field. e.) no current in the coil. 7.) A conducting coil is rotated at constant speed in a uniform magnetic field as shown in the figure here. The time required by the loop to make a full rotation is T. The current generated in the coil would increase Side view a.) if the angular speed of the coil increases. b.) if the area of the coil increases. c.) if the strength of the magnetic field increases. d.) All of the above are correct. e.) None of the above are correct. 8.) An RLC circuit has a resonant frequency of fo. When the circuit is driven by an AC voltag source whose frequency is 2fo, which of the following is the most accurate?CQ 10. Many roller coasters use magnetic brakes to slow the train at the end of its run. A conducting plate on the train passes by powerful magnets fixed on the track. a. Explain the principle behind this magnetic braking. b. The system needs an ordinary friction-based brake to bring the train to a full stop. Explain why the magnetic brake is not very efficient when the train is moving slowly
- 2. 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) = a18. Two very long conductors (both oriented in the same plane) are shown in the sketch below. The same magnitude of conventional current in each is represented by the red arrows. The black dot is at a position (in the same plane) equidistant between the conductors. Determine the direction of the magnetic field at the position of the black dot. A. There is no magnetic field at this position. B. The magnetic field is oriented out of the page. C. The magnetic field is oriented into the page. D. The magnetic field is oriented to the left. E. The magnetic field is oriented to the right.2. A generator consists of a 87-turn coil rotating in a uniform magnetic field of 1.35 T. The generator produces an output V=25-sin(812-t), where V is in Volts and t is in seconds. What is the area of the rotating coil? A. 1.24 cm² B. 2.62 cm² C. 3.87 cm² D. 5.44 cm² E. 6.91 cm²