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Physics - Electrostatics Question with Solution | TestHub

PhysicsElectrostaticsElectric Field & ForceEasy2 minPYQ_2020

PhysicsEasysingle choice

A spherical conductor of radius 10 cm has a charge of $3.2 \times 1 0^{- 7} C$ distributed uniformly. What is the magnitude of electric field at a point 15 cm from the centre of the sphere? $(\frac{1}{4 π ε _{0}} = 9 \times 1 0^{9} Nm^{2} C^{- 2})$ NEET 2020 (Phase 1)

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Answer:

Solution:

$E = \frac{k Q}{r^{2}} = \frac{9 \times 10^{9} \times 3 .2 \times 10^{- 7}}{{(15 \times 10^{- 2})}^{2}}$

$E = 1.28 \times 10^{5} N C^{- 1}$

Stream:NEETSubject:PhysicsTopic:ElectrostaticsSubtopic:Electric Field & Force

⏱ 2mℹ️ Source: PYQ_2020

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