Is the value of 'g' at a given place same for different bodies or it is variable ?

Is the value of 'g' same everywhere on the surface of earth?

Four point charges are placed at the four corners of a square in the two ways as shown in the fig. Will the electric field at the centre of the square, be the same or different in the two configurations and why?

Four point charges are placed at the four corners of a square in the two ways as shown in the fig. electric potential at the centre of the square be the same or difference in the two configurations and why?

From the data given below, state which group is more variable :

The vertical component of the earth's magnetic field at a given place is sqrt3 times its horizontal component. If total intensity of earth's magnetic field at the place is 0.4G, find the vale of angle of dip

From the data given below, state which group is more variable, A or B ?

The value of G is ________

What are the different types of fruiting bodies in fungi?