Capacitance (in F) of a spherical conductor with radius 1 m is :

1.1 \times 10^{- 10}

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10^{6}

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9 \times 10^{- 9}

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10^{- 3}

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Solution

The correct option is A $1.1 \times 10^{- 10}$
Capacitance of spherical conductor $= 4 π ϵ_{0} a$
where a is radius of conductor.
Therefore, $C = \frac{1}{9 \times 10^{9}} \times 1 = \frac{1}{9} \times 10^{- 9}$
$= 0.11 \times 10^{- 9} F = 1.1 \times 10^{- 10} F$

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Capacitance (in F) of a spherical conductor with radius 1 m is :

The correct option is A 1.1×10−10Capacitance of spherical conductor =4πϵ0awhere a is radius of conductor.Therefore, C=19×109×1=19×10−9=0.11×10−9F=1.1×10−10F

The correct option is A $1.1 \times 10^{- 10}$
Capacitance of spherical conductor $= 4 π ϵ_{0} a$
where a is radius of conductor.
Therefore, $C = \frac{1}{9 \times 10^{9}} \times 1 = \frac{1}{9} \times 10^{- 9}$
$= 0.11 \times 10^{- 9} F = 1.1 \times 10^{- 10} F$