What will happen if a soft iron bar is placed inside the solenoid?
a The bar will be electrocuted resulting in short-circuit.
b. The bar will be magnetised as long as there is current in the circuit.
c The bar will be magnetised permanently.
d. The bar will not be affected by any means.
Answers
What will happen if a soft iron bar is placed inside the solenoid?
a The bar will be electrocuted resulting in short-circuit.
b. The bar will be magnetised as long as there is current in the circuit. ✔
c The bar will be magnetised permanently.
d. The bar will not be affected by any means.
Answer:
The corect answer to the following question is=b. The bar will be magnetised as long as there is current in the circuit.
When a soft iron bar is introduced inside a current carrying solenoid, the magnetic field inside the solenoid will increase.
Explanation:
An iron bar when it is placed within the coils of a solenoid o it induces a current o. It stops the current it becomes a magnet o it loses its magnetism.
Iron is a magnetic material, so magnetism is induced in it and the bar is attracted to it. When the current stops, there is no longer a magnetic field around the magnet so the bar is no longer attracted to the magnet and drops.