Direction of current flow in a solenoid
Physics
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Answer
The direction of current flow in a solenoid determines the direction of the magnetic field it produces. You can determine this using the right-hand grip rule.
Right-Hand Grip Rule:
- Imagine gripping the solenoid with your right hand.
- Curl your fingers in the direction of the current flowing through the coils of the solenoid.
- Your thumb will then point in the direction of the magnetic field inside the solenoid, which corresponds to the North pole of the electromagnet.
Therefore, the direction of current flow dictates which end of the solenoid acts as the North pole and which acts as the South pole.
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