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Mechanism of Formation of P-N Junction

a positive po...

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a positive point charge q1 is placed at[a,0] and another positive point charge q2 is placed at [0,a] . find the force acting on q1

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Q. A thin metallic spherical shell contains a charge Q on its surface. A point charge

q_{1}

is placed at the center of the shell, and another charge

q_{2}

is placed outside the shell. All the three charges are positive. Then the force on charge

q_{1}

Q. There are two unknown charges,

Q_{1}

Q_{2}

. A positive charge is placed at P. P is closer to

Q_{2}

Q_{1}

. If the net electric force acting on the charge at P is zero, then conclusion is :

Q. Point charges

q_{1}

q_{2}

are placed in air at a distance 'r'. The ratio of the force on charge

q_{1}

q_{2}

and force on charge

q_{2}

q_{1}

A charge particle $q_{1}$ is at position (2,-1,3).The electrostatic force on another charged particles $q_{2}$ at

Q. A point charge

Q_{1}

exerts some force on a second point charge

Q_{2}

. If a 3rd point charge

Q_{3}

is
brought near, the force of

Q_{1}

Q_{2}

(Without changing their respective positions):

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Mechanism of Formation of P-N Junction

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