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qUESTIONS

10.8: A charge of 5.0 C is kept at the centre of a sphere of radius 1 m. What is the flux passing through the sphere? How will this value change if the radius of the sphere is doubled?

Three charges of 2μC, 3μC and 4μC are placed at points A, B and C respectively, as shown in Fig. a. Determine the force on A due to other charges.

Gap between two electrodes of the spark-plug used in an automobile engine is 1.25 mm. If the potential of 20 V is applied across the gap, what will be the magnitude of electric field between the electrodes?

How much positive and negative charge is present in 1gm of water? How many electrons are present in it? Given, molecular mass of water is 18.0 g.

Calculate and compare the electrostatic and gravitational forces between two protons which are 10^-15 m apart. Value of G = 6.674×10^-11 m3 kg6-1 s^-2 and mass of the proton is 1.67×106-27 kg

Charge on an electron is 1.6×10-19 C. How many electrons are required to accumulate a charge of one coulomb?

A charge +q exerts a force of magnitude -0.2 N on another change -2q. If they are separated by 25.0 cm, determine the value of q

Textbook Solutions-11th-MH

What is the gravitational potential due to the Earth at a point which is at a height of 2R above the surface of the Earth. Mass of the Earth is 6×10^24 kg, radius of the Earth = 6400 km and G = 6.67×10^-11 Nm2 kg 2.

Textbook Solutions-11th-MH

A body weighs 5.6 kgwt on the surface of the Earth. How much will be its the weight on a planet whose mass is 1/7th mass of the Earth and radius twice that of the Earth’s radius.

Textbook Solutions-11th-MH

Calculate the value of the universal gravitational constant from the given data. Mass of the Earth = 6×10^24 kg, Radius of the Earth = 6400 km and surface = 9.8 m/s2 the acceleration due to gravity on the surface=9.8 m/s^2

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