Category: electro magnetic wave propagation solved problems

Category: electro magnetic wave propagation solved problems

Exercise 5-4: A horizontal wire with a mass per unit length of 0.2 kg/m carries a current of 4 A in the +x direction. If the wire is placed in a uniform magnetic flux density B, what should the direction and minimum magnitude of B be in order to magnetically lift the wire vertically upward? [Hint: The acceleration due to gravity is g = −ˆz 9.8 m/s2 . ] Answer: B = ˆy0.49 T.

Exercise 5-4: A horizontal wire with a mass per unit length of 0.2 kg/m carries a current of 4 A ...
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Concept Question 5-2: The ends of a 10 cm long wire carrying a constant current I are anchored at two points on the x axis, namely x = 0 and x = 6 cm. If thewire lies in the x–y plane in a magnetic field B = ˆyB0 , which of the following arrangements produces a greater magnetic force on the wire: (a) wire is V-shaped with corners at (0, 0), (3, 4), and (6, 0), (b) wire is an open rectangle with corners at (0, 0), (0, 2), (6, 2), and (6, 0).

Concept Question 5-2: The ends of a 10 cm long wire carrying a constant current I are anchored at two ...
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Exercise 5-3: A charged particle with velocity u is moving in a medium with uniform fields E = ˆxE and B = ˆyB. What should u be so that the particle experiences no net force?

Exercise 5-3: A charged particle with velocity u is moving in a medium with uniform fields E = ˆxE and ...
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Exercise 5-2: A proton moving with a speed of 2 × 10m /s through a magnetic field with magnetic flux density of 2.5 T experiences a magnetic force of magnitude 4 × 10 −13 N . What is the angle between the magnetic field and the proton’s velocity?

Exercise 5-2: A proton moving with a speed of 2 × 10m /s through a magnetic field with magnetic flux ...
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An electron moving in the positive x direction perpendicular to a magnetic field is deflected in the negative z direction. What is the direction of the magnetic field?

An electron moving in the positive x direction perpendicular to a magnetic field is deflected in the negative z direction ...
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What are themajor differences between the electric force Fe a nd the magnetic force Fm ?

What are themajor differences between the electric force Fe a nd the magnetic force Fm ? ...
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How is the direction of the magnetic moment of a loop defined?

How is the direction of the magnetic moment of a loop defined? ...
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If one of two wires of equal length is formed into a closed square loop and the other into a closed circular loop, and if both wires are carrying equal currents and both loops have their planes parallel to a uniform magnetic field, which loop would experience the greater torque?

If one of two wires of equal length is formed into a closed square loop and the other into a ...
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A hollow tube with a rectangular cross-section has external dimensions of 0.5 in by 1 in and a wall thickness of 0.05 in. Assume that the material is brass, for which the conductivity is  1 = 1.5×10 7 S/m. A DC current of 200 A is flowing through the outer part of the tube. Part a Calculate the potential difference across an L = 1 m length of the tube in the z direction. Part b Calculate the potential difference across the same tube that is filled with a second conducting material with conductivity  2 = 1.5×10 5 S/m.

A hollow tube with a rectangular cross-section has external dimensions of 0.5 in by 1 in and a wall thickness ...
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1. A line of charge withdensity pl =2y uc/m exists in along they axis between y=-2cm and y =2cm find E at (1m,0,0) 2. Four point charges each with q= 1nC located at the cornersof 4m^2 square in x-y plane as shown in below find the force acting on the charge located at the origin (0,0) assume charge in vaccum 3. Given the electric flux density D=(R-sinΘ) R^ determine a. Volume charge density pv b. The total charge Q enclosed with in a sphere center at the origin in x-y plane (0,0,0) with radius 2m 4. A circular ring of charge of radius r1=1 and r2=2m lies on x-y plane and is centered at the origin. assume also that the ring is in air and carries a uniform density 2Q C/m^2 a. find the electric potential v at (0,0,z) b. find the corresponding electric field.

A line of charge withdensity pl =2y uc/m exists in along they axis between y=-2cm and y =2cm find E ...
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