State whether the following statements are True (T) or False (F):
An electric line of force is the locus of the test charge.

State whether the following statements are True (T) or False (F): Electric field is a scalar field.

State whether the following statements are True (T) or False (F): A cell is a source of electrons.

State whether the following statements are True (T) or False (F): In a electric field two lines of forces never intersect.

State whether the following statements are True (T) or False (F): In Boolean algebra (A+A) = A.

State wheteher the following statements are True (T) or False (F): All dielectrics are necessarily isulators.

State wheteher the following statements are True (T) or False (F): All insulators are dielectrics.

State whether the following statements are True (T) or False (F): Electric field intensity is a point function.

State whether the following statements are True (T) or False (F) The refractive index of different colours of light does not depend on wavelength of light.

State whether the following statements are True (T) or False (F): The charging equation of a cell is V= E + Ir.

State whether the following statements are True (T) or False (F): A cell is a source of energy, other than electrical.