Potentiometer and metre bridge

Potentiometer and meter bridge

Potentiometer and meter bridge

Potentiometer || Meter Bridge and Question Bank (120-141)Single Choice || Exercise-1 (65-94)

In a potentiometer of one metre length, an unknown emf voltage source is balanced at 60 cm length of potentiometer wire, while a 3 volt battery is balanced at 45 cm length. The the emf of the unknown voltage source is.

Why do we prefer potentiometer with a longer bridge wire?

Electrical Instrument | Potentiometer| Galvanometer Conversion to Ammeter & Volt Meter| Meter Bridge

Which of the following statement is not correct in metre bridge experiment ?