A student uses a coil of radius 12 cm with 95 windings. She then uses a permanent magnet of strength B = 0.5 mT to induce a voltage in the (same) coil. Calculate the expected voltage if she pulls the magnet from the coil in 0.03 seconds.

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A: winding in primary coil (N1) = 295 winding in secondry coil (N2) = 834 Potential difference across…

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Q: In a coil with an inductance of 5 mi, the current changes in 0.1 ms by 0.2 A. How much…

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Q: Two coils are placed close together in a physics lab to demonstrate Faraday’s law of induction. A…

A: If mutual inductance M then current  in one coil I will causes the flux ϕ in another coil as  ϕ=MI…

Q: P1 The switch K in the circuit shown in the figure is open, and there is no current in the coil. At…

A: The RL circuit is given:

Q: Suppose that when you move a magnet through a 34.5-turn coil at a certain speed, a voltage of 81.8…

A: According to Faraday's second law Induced emf = rate of change of magnetic flux

Q: The generator of a car idling at 1.582E+3 rpm produces 15.3 V. What will the output be at a rotation…

A: Given value--- angular speed 1 = 1.582E+3 rpm. Voltage 1 = 15.3 V. angular speed 2 = 2.886E+3 rpm.…

Q: Recall the demonstration of Faraday's law. A magnet is moved along the axis of a coil inducing an…

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Q: e 3. The rail gun: In the set up on the left the movable bar is initially at rest and then released.…

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Q: A transformer consists of 275 primary windings and 854 secondary windings. Part A If the potential…

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Q: A transformer is used to charge a cell phone. The number of turns on the primary coil is 600. The…

A: Given data: Number of turns of primary coil is, Np=600. Magnitude of input voltage is, Vp=120 V.…

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Q: = For the circuit shown below, € = 18.7V, R₁ = 44.2 Ohms, R₂ 20.6Ohms, and L= 40.4 H. S₁ remains…

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Q: An iron core transformer is as shown in the figure. The primary coil has Np = 2000 turns and the…

A: The number of turns in the primary Np=2000 turns The number of turns in the secondary Ns=5000 turns…

Q: The maximum induced emf in a generator rotating at 200 rpm is 40 V. How fast must the rotor of the…

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Q: A transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output…

A: Given, Secondary voltage = 600v Primary voltage = 120 v primary turns = 300 primary current = 300A…

Q: As the coil of wire in the generator spins, an output potential difference is induced. Explain how…

A: Given that As the coil of wire in the generator spins, an output potential difference is induced. To…

Q: A transformer consist of a primary coil connected to a 120 V source that drive 4 A of current…

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Q: The problem below explores the basic principle behind electric motors, which we will discuss in…

A: Area of the loop, A = H×W = 59.6744 m² Current, I = 6.62 A Magnetic field, B = 5.03 T Number of…

Q: Faraday's law of magnetic induction states that the voltage induced by a current running through a…

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Q: Problem 9: Suppose a generator has a peak voltage of 285 V and its 500 turn, 5.5 cm diameter coil…

A: Given that----- E = 285 V diameter = 5.5 cm B = 0.225 T Question ? What frequency in rpm must…

Q: (a) How much current flows through the motor when it is running smoothly? (b) Suddenly the string…

A: This problem is using two basic formulas of Electrodynamics  1.I=VR , where V = Voltage I=Current…

Q: The figure shows a rod of length L 8.84 cm that is forced to move at constant speed v 4.19 m/s along…

A: Given : Length of the rod. L = 8.84 cm = 0.0884 m Speed of the rod, v = 4.19 m/s Resistance of the…

Q: The coil of an electric generator produces a maximum EMF of 55.00V when it is rotated at 330.0 RPM.…

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Q: The generator of a car idling at 1.638E+3 rpm produces 11.6 V. What will the output be at a rotation…

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Q: She then uses a permanent magnet of strength B = 0.5 mT to induce a voltage in the (same) coil.…

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Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.