Question

Two coils of insulated copper wire are wound over a non-conducting cylinder as shown. Coil 1 has large

number of turns.

a. Write your observation when, i) Key k is closed ii) key k is opened

b. When the current is passed continuously through the coil 1. Give reason for your observations.

c. Name and state the phenomenon responsible for the above observation.

d. Write the name of the rule that is used to determine the direction of current produced in the

phenomenon.

e. Name the two coils used in this experiment.​

Answer 1

Answer:

When key is open, magnetic field lines around coil 2 decreases momentarily. This causes an induced current to flow in opposite direction. Hence, deflection occurs in opposite direction. (ii) When current is passed continuously through coil I, no deflection is observed in the galvanometer.