2
Question
A permanent magnet approaches a solenoid with a constant speed v
Polarity at Y Direction of the current in
the galvanometer.
I. N-pole
from the left
II. N-pole
from the right
III. S-pole
from the left
IV. S-pole
from the right
What is the magnetic pole induced at the portion Y of the solenoid and the direction of the induced current into the galvanometer?
A permanent magnet approaches a solenoid with a constant speed v
Polarity at Y Direction of the current in
the galvanometer.
| I. N-pole | from the left |
| II. N-pole | from the right |
| III. S-pole | from the left |
| IV. S-pole | from the right |
What is the magnetic pole induced at the portion Y of the solenoid and the direction of the induced current into the galvanometer?
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Solution
The correct option is C III
The magnetic field due to the induced current will be oriented in such a way that it resists the change in the magnetic field produced by a permanent magnet. Therefore, the end Y of the coil will behave as the south pole. And the current will flow from the left according to the right hand thumb rule.
Hence, option C is the correct answer.
The magnetic field due to the induced current will be oriented in such a way that it resists the change in the magnetic field produced by a permanent magnet. Therefore, the end Y of the coil will behave as the south pole. And the current will flow from the left according to the right hand thumb rule.
Hence, option C is the correct answer.
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