Why would a galvanometer needle deflect in one direction when a magnet goes into a coil and in the opposite direction when the magnet is pulled back out?

Q: In the figure below, the dashed lines show the equipotential lines of electric fields. (A charge…

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Q: Find the intensity of the electromagnetic wave described in each case. (a) an electromagnetic wave…

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Q: A standard flashlight battery can deliver about 4.9 W-h of energy before it runs down. (a) If a…

A: Given : Cost of Battery = 80 cents Energy delivered  per battery(e) = 4.9Wh Energy(W) required to…

Q: The figure shows the electric field of two like and equal charges. At what point is the electric…

A: Given that:

Q: Q1 What is the kinetic energy of a proton if the de Broglie wavelength is 1 x 10-15 m, the proton…

A: De broglie wavelength =1×10^-15 m Rest energy of proton= 0.938×10⁹ eV

Q: An automobile and a truck start from rest at the same instant, with the automobile initially at some…

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Q: Three charges are arranged as shown in the figure below. Find the magnitude and direction of the…

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Q: in an xy plal Find the (a) magnitude and (b) direction (with respect to +x-axis in the range…

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Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 18.2 Q. When they are…

A: Let the 2 resistors   1 & 2 have resistance  R1 & R2  ohms    respectively . according to…

Q: A baseball is thrown with an initial velocity of 100 m/s at an angle of 30 degrees above the…

A: Given Data, Initial velocity (u)=100 m/s Angle above the horizontal θ=300

Q: Observer S detects two flashes of light. A big flash occurs at x₁ = 1269 m and, slightly later, a…

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Q: Suppose that a particle moves along a straight line with velocity v(t) = 9 - 6t, where 0 ≤ t ≤ 0.5…

A: Given:- The equation of the velocity of the particle in a straight line is  v(t) = 9-6t where…

Q: A 1.00-kg brick rests on the surface of the Earth at the equator (6378 km). Calculate the following:…

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Q: During an X-ray examination, a person is exposed to radiation at a rate of 5.8 x 10-5 grays per…

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Q: A positive charge is placed at rest at the center of a region of space in which there is uniform,…

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Q: 15) The figure shows electric field lines arising from two small charged particles P and Q. Consider…

A: From the Gauss Law for electric field , we can imagine spherical surfaces of same radius on both…

Q: 28) Two long parallel wires are placed side-by-side on a horizontal table. If the wires carry…

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Q: Water at 29.0 °C is sprayed onto 0.194 gold at 1063 °C (its melting point). The away, forming steam…

A: GivenTemperature of water, Tw=29°CMass of gold, mg=0.194 kgMelting point of gold=1063°CWater forming…

Q: A laser beam in air is incident on a liquid at an angle of 53◦ with respect to the normal. The laser…

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Q: A ray of light from a coin embedded in an unknow solid undergoes total internal reflection if the…

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Q: In the figure, a particle moves along a circle in a region of uniform magnetic field of magnitude B…

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Q: 1. Consider the circuit shown. What is the current in 3-Ω resistor? (Assume that the battery has…

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Q: own from a bridge 21 m above water with an initial speed of 14 m/s. Assuming negligible air…

A: GivenRock is thrown from bridge  above water from height, h=21mInitial speed of rock, u=14m/s

Q: Find the requested quantities of a photon involved in the following hydrogen electron transitions.…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: When a light wave enters into a medium of different refractive index, A) its speed, frequency, and…

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Q: Gov ی ج ک الله WL 22 عى الله 22 Vo

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Q: One long wire lies along an x axis and carries a current of 30 A in the positive x direction. A…

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Q: A certain brand of hotdog cooker works by applying a potential difference of 132 V across opposite…

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Q: A circular loop of wire is in a region of spatially uniform magnetic field, as shown. The magnetic…

A: Lenz’s law of electromagnetic induction states that the direction of the current induced in a…

Q: 3. A voltage of 4.50 V is measured across a resistor with 2.00 A of current flowing through t What…

A: Given:-  The voltage V = 4.50 V  The current I = 2 A  Find:- The resistance of the resistor?  2.25…

Q: Light incident from glass at the boundary of air-glass bends away from the normal after refraction…

A: Refraction of light is due to the change in speed of light when it enters from one medium to…

Q: Your speed meter shows that your driving 60kph, and you want to overtake a truck running 50kph, 10m…

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Q: Determine whether the work done along the path C is positive, negative, or zero. کچھ کچھ کرن O…

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Q: Determine the maximum height (in inches) that a lift pump can raise water (0.9971 g/ml) from a well…

A: Given Data p = 0.9971 gml1000kgm31gmlp = 997.1kgm3

Q: A pendulum clock keeps perfect time at a point where g=9.800 m/s2, but it accumulates an error when…

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Q: There is a large cylindrical charge which is described distribution by the following charge density…

A: This Problem can be solved using gauss law for electric fields. Done below:

Q: A car accelerates uniformly from rest to final speed of 18m/s in 9 sec. How far does it travel…

A: given u = 0  ( as car start from rest so initial velocity is zero) v = 18 m/s   ( final velocity) t…

Q: n automobile and a truck start from rest at the same instant, with the automobile initially at some…

A: We have an automobile which is moving with an acceleration a1=3.4 m/s2 covering a distance d1=40 m…

Q: Q4. If A-121-16j and B=-24i +10j, what is the magnitude of the vector C-2B+A? a.36.2 b. 44.4 c. 13.4…

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Q: In the figure below, q1 = +1.00 nC and q2 = +9.00 nC. At what position is the net electric field due…

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Q: 21) When a current flows through a metal wire, the moving charges are A) both protons and electrons.…

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Q: 2.) Find the and are resultat inclined of the to each vectors other at having magnitudes of an angle…

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Q: An electron is placed in an uniform electric field of 4.5 x 10'5 N/C created by two parallel plates…

A: Given: The electric field is 4.5x105 N/C. The initial speed of the electron is 0 m/s. The distance…

Q: know that you Q = 5μC and a= 2 cm energy for the system of 4 charged beads depicted below. calculate…

A: We know, Electric Potential Energy(W) of a point Charge distribution is : W=12∑i=1nqiVRi here, qi is…

Q: Q9) The average acceleration of the particle (in m/s) between t-0 and t-2 (s) is a. 6 b. 14 c. 8 d.…

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Q: The current in a single-loop circuit with one resistance R is 5.8 A. When an additional resistance…

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Q: Review Conceptual Example 5 as background for this problem. Suppose some nucleus undergoes a decay,…

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Q: Q5. If A-2i+3j-4k and B=-3i+4j, then (2AxB) is a. -32i +24j-34k b. 32i+24j+34k c. 32i-24j-34k d.…

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Q: A laser diode produces infrared light with a vacuum-measured wavelength of λ=1290[nm]. What is the…

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Q: Light from a laser is directed through a pair of slits that are 40 mm apart. If the laser light has…

A: What we have to find is indicated in figure Formula used. dyD=mλ m is order of maxima From figure we…

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.