A magneto is used to cause the spark in a spark plug in manylawn mowers today. A magneto consists of a permanent magnetmounted on a flywheel so that it spins past a fixed coil. Explainhow this arrangement generates a large enough potentialdifference to cause the spark.

Q: Q4. A rectangular coil having sides 4 cm and 6 cm lies in a plane and consists of 100 turns of wire…

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Q: Two, long currents are placed close to each other (one is above the other). The current that is…

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Q: Give the conditions under which magnetic vector and scalor potentials are defined

A: magnetic vector is the analogous quantity of  scalar potential that is known as  voltage.

Q: a) At any given time, what is the force exerted on the sliding wire by the external magnetic field?…

A: Here, magnetic field = Bo current = i0 a) let the force exerted on the sliding wire the force…

Q: Figure shows a long straight wire near a rectangular current loop. What is the direction and…

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Q: A magnet with the north pole down is falling toward a copper loop, as shown below. The opper loop is…

A: we will use lenz's and faraday's law to answer the question which is related to flux of…

Q: Two long fixed wires cross each other perpendicularly to that do not actually touch but are very…

A: Two long fixed wires cross each other perpendicularly to that do not actually touch but are very…

Q: :. An electron moving at the speed of 107 m/s, enters a magnetic field of induction 0.1 T at right…

A: To find-Radius of path of electron=?Given-Speed of electron (V)=107 m/sMagnetic field (B)=0.1 T

Q: In the figure, a wire carrying current into the plane of the figure is between the north and south…

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Q: You have given a power supply, copper wire, and an iron nail. What should you do to decrease the…

A: In the electromagnet the copper wire is wound around the iron nail. So, it works as the solenoid. As…

Q: A loop of current carrying wired is in a 1.6 T magnetic field. a) For the magnetic torque on the…

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Q: Question: A wire loop moves at a constant velocity 2.0 m/s through a constant magnetic field of 0.1…

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Q: A toroid has N turns wound around it. The current through the windings is / as shown in the figure.…

A: Toroid is closed loop of solenoid which acts as magnet whenever current passes through it.

Q: What is the induced electromotive force in a 0.50 m rod moving with a velocity of 1 m/s…

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Q: Why is a generator armature harder to rotate when it is connected to a circuit and supplying…

A: It is a matter of energy conservation.

Q: A loudspeaker consists of a cone attached to a current-carrying coil located in a magnetic field.…

A: It is given that the loudspeaker consists of the cone attached to the current carrying coil in the…

Q: The figure shows a long straight wire near a rectangular current loop. What is the direction and…

A: Given- I1 = 15 A I2 = 30 A Distance between rectangular loop and a wire (r) = 7.50 cm = 0.075 m…

Q: A long solenoid that has 890 turns uniformly distributed over a length of 0.380 m produces a…

A: Given that:- Number of turns (N) = 890 Length (L) = 0.380 m Magnetic field (B) = 1.00 × 10-4 T…

Q: Suppose a 20-turn coil lies in the plane of a page in a uniform magnetic field of 1.5 T that is…

A: Concept: Given: Number of turns (N)=20Magnetic Field (B)=1.5 TOriginal Area=0.50 m2And it is…

Q: Study guide #8 The fiquse Belo W caircular loop Carying (ong Straight Wire toaching a a current I:…

A: Given:I1=2.60 A

Q: A rectangular coil of wire has a length of 50 cm and a width of 30 cm. The current in each loop is…

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Q: Small one-cylinder gasoline engines sometimes use a device called a magneto to supply current to the…

A: A permanent magnet is attached to the flywheel. A stationary coil is mounted adjacent to the magnet.…

Q: A charged particle with mass m and charge q is moving with velocity v. If it is under the influence…

A: Given: A charge particle moving in a circular path having            Charge on particle =q…

Q: #200A 009 wede ba silidate lliw yalqib usiq bobammose a mu Pre-Laboratory Questions 1. Consider the…

A: Answer -Q1(1) The resultant magnetic field per ampere of current is  0.77mT/A (2) The magnetic field…

Q: If one of the loops in the figure is tilted slightly relative to the other and their currents are in…

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Q: Imagine moving along the axis of the current-carrying loop in the figure below, starting at a point…

A: The magnetic field due to the current carrying loop is dependent on the current flowing through the…

Q: How does a solenoid behave like a magnet? Can you determine the north and south poles of a…

A: Solenoid behaves as a magnet as it has soft iron core with insulated copper wire over it. A magnetic…

Q: The magnetic field due to current in wires in your homecan affect a compass. Discuss the effect in…

A: Answer:   The standard value of current for household circuits are 20 Ampere. When the current…

Q: Explain what would happen if you were to place a diamagnetic sphere down the bore of a vertical…

A: When an external field is applied to a material, the magnetic moments produced by the tiny current…

Q: Find by explicit integration the magnitude and direction of the force on the square loop shown in…

A: To determine the net force on square loop.

Q: A long bar magnet is placed above a current loop oriented as shown. In which direction will the…

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Q: A small bar magnet placed with its axis at 30° with an external field of 0.06 T experiences a torque…

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Q: A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a…

A: Radius of the semicircle is Magnetic field is Find:The change in magnetic flux.

Q: 2. Consider the following coil, named "Helmholtz"(see figure below): -N turns Po A turns where N…

A: Given, Two current carrying coils named as Helmholt

Q: Two concentric loops of wire are carrying currents in opposite directions. Describe the net force…

A: The question is asking us to describe the net force and the torque on either of the current loops…

Q: Hi! My professor wrote this but I dont really understand why the angle was not really the 30…

A: We are given dimensions of the rectangular loop. We hence find the area of loop. We are also given…

Q: le electric motor consists of a 220-turn coil, 4.2 cm in diameter, mounted between the magnet that…

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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.