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Match List-I with List-II and select the...

Match List-I with List-II and select the correct answer by using the codes given below the lists

A

potential at its surface is `150 V`

B

the charge on the sphere is `(5//3)xx10^(-10)C`

C

the electric field on the surface is `1500 V//m`

D

the electric potential at its centre is `225 V`

Text Solution

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The correct Answer is:
A, C, D
Potential at 5 cm from surface`=(KQ)/(R+5)=100`
Potential at `10` cm from surface
`=(KQ)/(R+10)=75 rArr R=10` cm.
`:.` Potential at surface `=(KQ)/(R)=(100xx15)/10=150 V`
Electric field on surface`=(KQ)/R^(2)=(100xx15Vxxcm)/(100 cm^(2))`
`=1500 V//m`
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