what is solenoid? write a note on the magnetic field caused by solenoid
Answers
Explanation:
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Answer:
A solenoid is a long cylindrical coil of wire that acts like a magnet when current is flowing through it.
An experiment to demonstrate the magnetic effect of a solenoid is as follows
Aim - To test the magnetic effect of a solenoid.
Materials required – a long length of copper wire, a simple circuit, mariner’s compass.
Method – i) Wind the length of copper wire around a cylindrical object around 20-25 times.
ii) Remove the cylindrical object carefully leaving behind only the coiled wire.
iii) Connect this coil to a simple circuit.
iv) Place a mariner’s compass near the circuit and observe if the needle is deflected.
v) Increase the distance between the circuit and the compass to see how far the magnetic effect extends.
Observation – It is observed that when the mariner’s compass is placed near the circuit
the needle shows deflection. When the distance between the circuit and compass is increased the magnetic effect is decreased.
Explanation: