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A very small circular metal ring of radius r=0.5cm and resistance x=5ohms is that the center of a large concentric circular metal ring of raduis R=50cm and resistance X=500ohms. The two rings lie in the same plane. At t=3.00 seconds, the large ring carries a clockwise current of 3 ampere, and at t=3.2 seconds the large ring carries a counterclockwise current of 5 ampere.
a) What is the average electric field induced in the small ring during this time? Draw a diagram, showing all relevant quantities.
b) What is the magnitude and direction of the average current in the small ring?
A potential difference V is applied to a wire of cross section A, length L, and resistivity ?. You want to change the applied potential difference, What should be the new values of L and A in terms of the old values
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Start from the expression of the electric filed outside an infinite sheet of uniform surface charge density, E=sigma/2epsilon, derive the electric field
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Two point charges q1 = 3.40 nC and q2 = -5.50 nC are 0.100m apart. Point A is midway between them; point B is 0.080 m from q1 and 0.060 m from q2. Take an electric potential to be zero at infinity.
A motorist drives south at 22.0 m/s for 3.00 min, then turns west and travels at 25.0 m/s for 3.00 min, Find the total vector displacement and south west
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A guitar string with a mass of 10.0 g is 1.00 m long and attached to the guitar at two points separated by 61.6 cm. find the frequency of the replacement string's first harmonic
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An ambulance passes a bus stop at 50m/s with a siren of 340Hz, What is the wavelength heard by the bus stop costumers as the ambulance approaches
A crate with a mass of 171.5 kg is suspended from the end of a uniform boom with a mass of 80.3 kg. The upper end of the boom is supported by a cable attached to the wall and the lower end by a pivot (marked X) on the same wall. compute the tensio..
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