Ten million electrons pass from point P to point Q m one micro second. The current and its direction is

One billion electrons pass from a point P towards another point Q in 10^(-3) s. What is the current in ampere ? What is its direction ?

If one mole of electrons is passing from point P to another point Q on a straight metal wire in time interval of 1 ms, then what will be the magnitude of current in the wire ? What is the direction of current ?

If 10^(6) electrons pass from a point towards another point B in a conductor in one microsecond. Find the magnitude and direction of current. Give charge of an electron is 1.6 xx 10^(-19) C.

How many electrons pass in one second when current is 1 A?

A ball dropped from a point P crosses a point Q in t seconds. The time taken by it to travel from Q to R, if PQ=QR