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Please give me the detailed solution

A pendulum bob of mass 80 mg and carrying a charge of 2 x 10^-8 C is at rest in a uniform , horizontal electric field of 20kV/m.Find the tension in the thread?

A positive charge q is placed in front of a conducting solid cube at a distance d from its center.Find the electrical field at the center of the cube due to the charges appearing on its surface?

why r u saying like that dost

What u have posted i am not understanding

Please solve this.I will rate u.and yes,this is the question of H.C.Verma

Two small spheres ,each having a mass of 20 g, are suspended from a common point by two insulating strings of length 40 cm each .The spheres are identifically charged and the separation between the balls at equilibrium is found to be 4 cm.Find the charge on each sphere?

Two identical pith balls are charged by rubbing against each other.They are suspended from a horizontal rod through two strings of length 20 cm each,the separation between the suspension points being 5 cm.In equilibrium , the separation between the balls is 3 cm.Find the mass of each ball and the tension in the string.The charge on each ball has a magnitude of 2.0 x 10^-8C.

How many atoms do mercury vapour

molecules consist of if the density of

mercury vapour relative to air is is 6.92?

(Hg=200).The average mass of air is

29g/mole.

600 mL of a mixture of O₃ and O₂

weights 1 g at NTP. Calculate the

volume of ozone in the mixture?

Calculate the velocity of an electron of a hydrogen atom in the ground state?

rates assured

By what name arihant publishas it?

does arihant publishes IIT -physics guide

What is in g.c.aggarwal that are not in tmh and arihant.i mean why g.c.aggarwal is better?

My teacher told me to buy a guide 4 physics.So,which of these three should i buy.

arihant,tmh,d.c.aggarwal.What about arihant,does arihant's guide comes