Physics Quarter-3

An electric field due to a positive charge is represented by the diagram. Which of the following points has higher potential?

Maximum power is delivered by battery to a load resistance R when

$$\epsilon_o$$ (permittivity of free space) and K is coulomb constant then $$\epsilon_o$$ is expressed as

The magnitude of electric field strength E such that an electron placed in it would

experience an electrical force equal to its weight is given by

The least resistance that one can have from six resistors of each 0.1 ohm resistance is

When three identical resistances are connected to form a triangle the resultant resistance between any two corners is 30Ω .The value of each resistance is

The capacity of a storage cell is 5 ampere hours. The maximum current it can supply for ten hours is

On moving a charge of 20 C by 2 cm, 2 J of work is done, then the potential difference between the points is

Two equal and opposite 5C charges are separated by a distance 10 cm. The electric potential at the midway between them is

In comparison with the electrostatic force between two electrons, the electrostatic force between two protons at the same distance is.