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1)Three electric insulated point charges are forming an equilateral triangle with side a.
a.) Find electric field at the center of this triangle.
b.) What will be the magnetic field at the center of the same triangle, when charges are moving along its sides with constant velocity v in clockwise direction and are exactly in the middle between two consequent corners?
2) A metal ring of radius r carries uniformly distributed along its circumference charge Q. Define the electric field in the center of this ring and on its axis (assume that the distance form some point on the axis to the center of the ring is a).
3) A solid, insulating sphere of radius (a) has a uniform charge density p and a total charge +Q. Find the magnitude of the electric fiel in the regions r<a and r>a. Draw the schematic graph of electric field ( E vs. r).
electrons flow through a 2.2 mm diameter aluminum wire at 2.2 x 10^-4 m/s. *electron density of aluminum is 6 x 10^28 m^-3*
A resistor with R=300 ? and an inductor are connected in series across an ac source that has voltage amplitude 500 V. What is the power factor
Points A, B, and C are at the vertices of an equilateral triangle. A certain positive charge q placed at A produces anelectric field of magnitude 490 N/C at C.Suppose a second, identical charge is placed at B. What is themagnitude of the new electric..
A charge of -3.0 nC is at the origin and a second charge of 13.0 nC is at x = 8.00 m. Find the magnitude and direction of the electric field halfway in between the two charges.
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an electric dipole consists of charges 2e and -2e separated by 0.99 nm. it is in an electric field of strength 3.6 x
a viewing window in the atlanta aquarium is 69 inches wide and 41 inches high. if the average pressure of the water
She only uses the most accelerated depreciation method possible. The computer is the only personal property which she places in service during the year. Illustrate what is her total depreciation deduction for 2011?
Fuel systems of modern cars are designed so thermal expansion of gasoline doesn't result in wasteful and polluting fuel spills. As an engineer, How large an expansion tank do you specify
consider two point charges located on the x axis one charge -12.0 is located at -1.650 the second charge 31.0 is
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