in coil and magnet experiment.relative motion between magnet and coil . influencing induced current . write the experimental conclusion and why galvanometer is used instead of ammeter.explain
Answers
Answer:
Explanation:
The conclusion of the experiment will be -
The galvanometer displays no deflection when the magnet is stationary.
When the magnet's north pole is carried to the coil, a sudden deflection of the galvanometer indicates that a current is generated in the coil. The deflection of the galvanometer is reversible and lasts as long as the bar magnet is in motion.
When the bar magnet's south pole is rotated towards or away from the coil, the galvanometer deflection will be contrary to that found in similar movements with the north pole.
The galvanometer displays deflection in the opposite direction showing the position of the induced current in the opposite direction when the magnet is moved away from the coil
Explanation:
From this experiment it can be concluded that when there will be a relative motion between the bar magnet and coil then an emf will induced in the coil and if the circuit will be a closed path then current will also establish.
We use galvanometer instead of ammeter because in this experiment we have intention of detecting current instead of measuring amount of current.