Name the device used for measureing the internal resistance of a secondary cell.

Name the device used for measuring the internal resistance of a secondfary cell.

Name the device used for measuring the e.m.f. of a cell.

Name the device used for measuring the mass of atoms and molecules.

Is internal resistance a defect in the cell?

Is internal resistance a defect in the cell?

What is the principle of a potentiometer? With the help pf circuit diagram, explain the use of potentiometer to measure internal resistance of a given primary cell.