All points of a conductor are always at same potential, is this statement true of false?

Electric field inside a conductor is always zero. Is this statement true of false?

Electric field inside a conductor is always zero. Is this statement true of false?

When a body rolls, on a stationary ground, the acceleration of the point of contact is always zero. Is this statement true or false?

When a body rolls, on a stationary ground, the acceleration of the point of contact is always zero. Is this statement true or false?

The product of resistivity and conductivity of a conductor is constant. Is this statement true or false?

The product of resistivity and conductivity of a conductor is constant. Is this statement true or false?

Work done by friction in pure rolling is always zero. Is this statement true or false?

Work done by friction in pure rolling is always zero. Is this statement true or false?

"Metal is a good conductor of electric current". State whether this statement is true or false?

"Electric field within the conductor is zero’. Check whether this statement is true or false?