One way to make a compass is to stick a magnetized needle into a piece of cork and float it in a glass bowl full of water. The needle will align itself with the horizontal component of Earth’s magnetic field. Since the north pole of this compass is attracted northward, will the needle float toward the north side of the bowl? Defend your answer.

Q: An electron is traveling horizontally toward the north in a uniform magnetic field that is directed…

A: The direction of the magnetic force on a moving charge is given by the right-hand rule. The…

Q: What is the force per meter on a lightning bolt at the equator that carries 20,000 a perpendicular…

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Q: You place two long wires parallelly side-by-side, on a horizontal table, carrying currents of the…

A: We can find the direction of magnetic field by wrapping our right hand fingers around thr wire with…

Q: Presume that there is a horizontal uniform magnetic field of 0.11 Tesla parallel to the ground. If a…

A: Given, The magnetic field is parallel to ground and a mosquito is in air

Q: An electron is traveling horizontally toward the north in a uniform magnetic field that is directed…

A: The direction of the magnetic force on a moving charge is given by the right-hand rule. The…

Q: The Earth's magnetic field is critical for astronauts in Low Earth Orbit because it protects them…

A: Earth's magnetic field is the magnetic field generated by the earth that extends from the earth's…

Q: Vector u = <-7,3,-5> and vector v = <-1,1,0>. Find the cross product of u X v.

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Q: A long current-carrying wire, oriented North-South, lies on a table (it is connected to batteries…

A: GivenThe distance of needle above the wire is (x) =3mm=3×10-3mHorizontal component of earth magnetic…

Q: You fly over the north pole of the earth and drop a coin with its surface normal along the polar…

A: It is given that a coin is thrown from top 9f North Pole of the earth, we have to find the direction…

Q: A 5.47 C point charge is moving with a speed of 6.98 m/s. It is moving perpendicular to a magnetic…

A: Charge (q) = 5.47 C  Speed (v) = 6.98 m/s  Magnetic field (B) = 6.28 T

Q: A power cord for an appliance contains two parallel wires (separated by an insulator) that carry…

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Q: a region where there is both an electric field E~ pointing upward (shown in the figure below), and…

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Q: Solar x-ray flares represent an explosive release of stored magnetic energy.  The energy initially…

A: True. Solar x-ray flares indeed represent an explosive release of stored magnetic energy. The…

Q: A point charge moving in a magnetic field of 1.24 Tesla experiences a force of 0.615E-11 N. The…

A: According to Lorentz Force F = q(E + v×B) And E is zero, So F = q(v×B) Now given that, magnetic…

Q: An electron moves up at a velocity of 9.8 x 104 m/s and has a magnetic force of 5.6 x 10-18 N…

A: See below

Q: A 1500 kg car moves west along the equator. At this location Earth's magnetic field is 3.5 × 10^−5 T…

A: Given Data, Mass of the car (m)=1500 kg The Earth's Magnetic Field (B)=3.5 × 10−5 T Charge (q)=-2.5…

Q: A horizontal compass is placed 0.6 cm due South from a straight vertical wire carrying a 5.5 A…

A: a)1.884 x 10-4 Tb) 87.67o from East (counterclockwise)Explanation:

Q: A loop of wire carries 0.6 A and is placed in a magnetic field with a strength of 4.6 T. The loop of…

A: Given data: Current (I) = 0.6 A Magnetic field (B) = 4.6 T Length (L) = 0.75 m Angle (θ) = 90°…

Q: Consider a large hot air balloon that is drifting due south at a speed of 17 m/s over an area of the…

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Q: Calculate the magnetic dipole moment of Earth. Assume that it is produced by charges flowing in…

A: The problem is asking us to calculate the magnetic dipole moment of the Earth. The magnetic dipole…

Q: A wire carrying a current is able to levitate in a magnetic field. (a) Show, using a diagram, an…

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Q: Consider an electron traveling along the +x-axis when it enters a region where there is a magnetic…

A: Given,An electron traveling along the +x-axisdeflected downward in the -y-direction.

Q: Picture a negative charge moivng leftward on your computer screen, with some velocity. A magnetic…

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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.