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A charge of 33.3 nC is placed on the inner conducting core of a spherical capacitor which has a radius of a = 555 mm. The inner radius of the outer shell is equal to b = 888 mm. The gap between a and b is filled with a polystyrene dielectric. What is the magnitude of the potential difference between a and b? This is a positive number. Give your answer in units of Volts.

A charge of 33.3 nC is placed on the inner conducting core of a spherical capacitor which has a radius of a = 555 mm. The inner radius of the outer shell is equal to b = 888 mm. The gap between a and b is filled with a polystyrene dielectric. What is the magnitude of the potential difference between a and b? This is a positive number. Give your answer in units of Volts.

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A charge of 33.3 nC is placed on the inner conducting core of a spherical capacitor which has a radius of a = 555 m m . The inner radius of the outer shell is equal to b = 888 m m . The gap between a and b is filled with a polystyrene dielectric. What is the magnitude of the potential difference between a and b ? This is a positive number. Give your answer in units of Volts.

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(a) A small plastic bead with a charge of −60.0 nC is at the center of an insulating rubber spherical shell with an inner radius of 20.0 cm and an outer radius of 27.0 cm. The rubber material of the spherical shell is charged, with a uniform volume charge density of −1.30 μC/m3. A proton moves in a circular orbit just outside the spherical shell. What is the speed of the proton (in m/s )? m/s (b) What If? Suppose the spherical shell carries a positive charge density instead. What is the maximum value the charge density (in μC/m3 ) the spherical shell can have below which a proton can orbit the spherical shell? μC/m3

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