Physics
Name and state the rule by which the polarity at the ends of a current carrying solenoid is determined.
Electro-Magnetism
91 Likes
Answer
Polarity at the ends of a current carrying solenoid is determined by the Clock rule.
It states that looking at the face of the loop, if the current in wire around that face is in anticlockwise direction, the face has the north polarity, while if the current at that face is in clockwise direction, the face has the south polarity.
Answered By
64 Likes
Related Questions
State two ways by which the magnetic field due to a current carrying solenoid can be made stronger.
What will happen to a compass needle when the compass is placed below a wire and a current is made to flow through the wire? Give a reason to justify your answer.
The diagram in figure shows a small magnet placed near a solenoid AB with it's north pole N near the end A. Current is switched on in the solenoid by pressing the key K.
(a) State the polarity at the ends A and B.
(b) Will the magnet be attracted or repelled? Give a reason for your answer.
State a law, which determines the direction of magnetic field around a current carrying wire.