A pitch ball covered with a tin foil having a
mass m kg hangs by a fine silk thread of
length r metres in an electric field E. When
the ball is given an electric charge of q
coulomb, it stands out d metre apart from
the vertical line. The magnitude of an electric
field will be

Question

Shubham Singh · Answer

The answer is – mgd q (r 2 -d 2 ) 1/2

Alfred Pius · Answer

Found a clue on the internet. Let the angle made by the string with the vertical be θ. Then tanθ= d/(l^2-d^2)^1/2

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A pitch ball covered with a tin foil having a mass m kg hangs by a fine silk thread of length r metres in an electric field E. When the ball is given an electric charge of q coulomb, it stands out d metre apart from the vertical line. The magnitude of an electric field will be

A pitch ball covered with a tin foil having a
mass m kg hangs by a fine silk thread of
length r metres in an electric field E. When
the ball is given an electric charge of q
coulomb, it stands out d metre apart from
the vertical line. The magnitude of an electric
field will be

2 Answers

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A pitch ball covered with a tin foil having a mass m kg hangs by a fine silk thread of length r metres in an electric field E. When the ball is given an electric charge of q coulomb, it stands out d metre apart from the vertical line. The magnitude of an electric field will be

A pitch ball covered with a tin foil having amass m kg hangs by a fine silk thread oflength r metres in an electric field E. Whenthe ball is given an electric charge of qcoulomb, it stands out d metre apart fromthe vertical line. The magnitude of an electricfield will be

2 Answers

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Other Related Questions on Electrostatics

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A pitch ball covered with a tin foil having a
mass m kg hangs by a fine silk thread of
length r metres in an electric field E. When
the ball is given an electric charge of q
coulomb, it stands out d metre apart from
the vertical line. The magnitude of an electric
field will be