Electric Field IV

By the end of the lesson, you should be able to:

• Convert  a galvanometer to ammeter (shunt) and voltmeter (multiplier)
• Solve simple problems on multipliers and shunts
• Use potentiometer, Wheatstone bridge and Metre Bridge to compare e.m.f resistances.
• Explain the basic principles of the potentiometer circuit
• State and demonstrate the condition for a balanced Wheatstone bridge circuit and deduce the condition for a balanced metre bridge