What is the least quantity of the magnitude of the charge that can be given to or removed from a body ?

A family has two children. What is the probability that both the children are boys given that at least one of them is a boy ?

In what way can the magnitude of an induced current be increased ?

What are the limitations of the energy that can be obtained from the oceans?

What is the molecular formula of the alcohol which can be derived from propane?

A long straight wire carries a current of 35 A. What is the magnitude of the field B at a point 20 cm from the wire?

A large quantity of one of the following is removed from our body by lungs.

Two point charges q_(A)= 5mu C and q_(B)= -5muC are located at A and B separated by 0.2m vacuum. What is the electric field at the midpoint O of the line joining the charges? If a negative test charges of magnitude 2mC is placed at O, what is the force experienced by the test charge?