Can a body have a charge of `0.8 xx 10^(-19)C`? Justify your answer by comment?

There are two types of charges namely positive and negative. Br Can a body have a charge of 0.8x 10^-19C? Which basic property of electric charge is the reason for your answer?

Can you design a heat engine of 100% efficiency. Justify your answer.

A small particle carrying a negative charge of 1.6 xx 10^(-19)C is suspended in euilibrium between the horizontal metal plates 5cm apart, having a potential difference of 3000V across them. Find the mass of the paricle

A polythene piece rubbed with wool found to have a negative charge of 3xx10^(-7)C .Estimate the number of electrons transferred (from which to which?)

A spherical Gaussian surface encloses a charge of 8.85 xx 10^(-8),C . (i) Calculate the electric flux passing through the surface (ii) If the radius of the Gaussian surface is doubled, how would the flux change?

Can one cut out a triangle of one side 7cm and its opposite angle 40^@ from a circular sheet of diameter 10 cm. Justify your answer. [sin 40^@ = 0.64]

For an arithmetic sequence 22,26,30,..... Can the difference between any two terms of this sequence be 50. Justify your answer ?