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The electric potential at 0.1m from a po...

The electric potential at 0.1m from a point charge is 50V. What is the magnitude of the charge?

Text Solution

Verified by Experts

Given , `r=0.1m,V=+50" V and "q=?`
As, `V=(1)/(4pi epsi_(0))*(q)/(r)`
`50=9xx10^(9)xx(q)/(0.1)rArrq=(50xx0.1)/(9xx10^(9))`
`:." "q=5.6xx10^(-10)C`
As, V is positive, therefore q must be positive.
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