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A hollow, conducting sphere with an outer radius of 0.250 m and inner radius of 0.200 m has a uniform surface charge density of +6.50µC/m2. A charge of -5.00 µC is now introduced into the cavity inside the sphere.
(a) What is the new charge density on the outside of the sphere?
(b) Calculate the strength of the electric field outside the sphere.
(c) What is the electric flux through a spherical surface just outside the inner surface of the sphere?
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A 12 V battery, an ammeter, a 5.0 A fuse (which will burn out if more than 5.0 A of current is in the circuit), and several 10.0 lamps are used in an experiment to find the effect of connecting resistances in parallel. Determine the total resistan..
A uniform electric field of about 100 V/m pointing straight down, exists just above Earth's surface. what uniform surface charge density would be required
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