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A point charge +q is fixed at a distance a from an infinite, grounded conducting plane, then induced charge on the plane is
  • a)
    –q 
  • b)
    0
  • c)
  • d)
    +q
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
A point charge +qis fixed atadistance a from an infinite, grounded con...
The correct answer is: –q
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Most Upvoted Answer
A point charge +qis fixed atadistance a from an infinite, grounded con...
It's because +q will attract -q of the plate. so the excess of +q in plate which will be induced in plate due to accumulation of -q on one side(+q charge placed side) will go into the ground. ans plat is grounded
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Community Answer
A point charge +qis fixed atadistance a from an infinite, grounded con...
As the conducting plane is grounded the net charge on the plane is zero, Qnet =0. Therefore Qnet=q(infinity)+q(induced). here q(infinity)=+q
ie, 0=q+q(induced)
q(induced)=-q
Hence the answer. I got the answer by considering the grounded conducting plane like a Gaussian surface of closed charge. They have similar properties because they have the same net charge.
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A point charge +qis fixed atadistance a from an infinite, grounded conducting plane, then induced charge on the plane isa)–qb)0c)∞d)+qCorrect answer is option 'A'. Can you explain this answer?
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