Question

An insulating sphere of radius 0.30 m has positive charge distributed uniformly inside it. A student measures the electric field at a point 0.50 m from the center of the sphere and finds it to have a magnitude of 15000 N/C. at that point. What is the maximum magnitude of the electric field that this sphere produces?
O 36,000 N/C
O 48,000 N/C
O 15000 N/C
O 25,000 N/C
O 42,000 N/C
O 30,000 N/C
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Answer 1

The maximum strength of the electric field produced by this sphere is 41653 N/C

An electric field is a physical force that surrounds a charged particle and exerts a force on all other charged particles within the field to attract or repel them. It's a place. It also refers to the physical field of a charged particle system.

Calculation:-

Charges are evenly distributed inside a non-conducting sphere with a radius of 0.30 m. The electric field at point p, 0.50 m from the center of the sphere, is 17,000 N/C and is directed radially outward. The radius of the

sphere is R = 0.3 m

r = 0.5 m then E = 15000 N/C

r > R for this value of r

E = k Q / r2

where k is the coulomb is the force constant, value 8.99*10^9 N.m2/ C^2 and Q is the total charge on the sphere.

Q = E r^2 / k

Q = 15000 * 0,5 * 0,5 / 8,99 * 10 ^ 9

Q = 41653 N/C

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