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[" Q.29Who established that electric cha...

[" Q.29Who established that electric charge is quantized "],[" 1) "],[" 2) "],[" 3) "" R.A Millikan "],[" 4) Thomson "],[" 4) Withelm Rontgen "]

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The electric force between two electric charges is given by F=k(q_(1)q_(2))/(r^(2)) where r is the distance between q_(1) and q_(2) . Give the dimensional formula of k.

a. All free charges are integral multiple of a basic unit charge 'e'. Then quantization rule of electric charge implies a. Q=e b. Q=1/e c. Q = ne d. Q = e^2 b. Match the following quantities in Column A with their units in Column B. .

Find the area of triangle whose vertices are P(3/2,1),Q(4,2), R(4,-1/2)

The electric force on a charge q_1 due to q_2 is (4hati-3hatj)N . What is the force on q_2 due to q_1

The electric force on a charge q_1 due to q_2 is (4hati-3hatj)N . What is the force on q_2 due to q_1

[" Two uniformly charged non "],[" conducting spheres of radii "R_(1)" and "],[R_(2)" having charges "Q_(1)" and "Q_(2)],[" respectively are seperated by "],[" distance "r" .Total electrostatic "],[" energy of this system is "],[qquad [U=(1)/(4 pi epsilon_(0)){(3Q_(1)^(2))/(5R_(1))+(3Q_(2)^(2))/(5R_(2))+(Q_(1)Q_(2))/(r)}],[U=(1)/(4 pi epsilon_(0)){(3Q_(1)^(2))/(5R_(1))+(3Q_(2)^(2))/(5R_(2))-(Q_(1)Q_(2))/(r)}],[U=(1)/(4 pi epsilon_(0)){(Q_(1)^(2))/(5R_(1))+(3Q_(2)^(2))/(5R_(2))-(Q_(1)Q_(2))/(r)}],[U=(1)/(4 pi epsilon_(0)){(3Q_(1)^(2))/(5R_(1))+(3Q_(2)^(2))/(R_(2))+(Q_(1)Q_(2))/(r)}]]

Three concentric metallic spherical shells of radii R, 2R, 3R are given charges Q_(1) Q_(2) Q_(3) , respectively. It is found that the surface charge densities on the outer surface of the shells are equal. Then, the ratio of the charges given to the shells Q_(1) : Q_(2) : Q_(3) is

Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q_1 , Q_2 , Q_3 , respectively. It is found that the surface charge denisties on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q_1:Q_2:Q_3 , is