Question 7 Please follow Link below to find Question httpimg

Question 7: Please follow Link below to find Question

http://imgur.com/1hjNdkt

Solution

Electric field outside sphere E = KQ/r²,

where r is raidal distance, r=41.5+25.3/2 = 54.15 cm = 0.5415 m

E=2.73 x 10⁵ N/C,

K=9x10⁹ Nm²/C²,

Q=?

Q = Er²/K = 8.89 x 10^-6 Coulombs

So the charge on the object is not unusual. One need to have much large electric field to have more charge.