By keeping a soft iron piece in a solenoid the strength of magnetic field
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A core of ferromagnetic material likeiron serves to increase the magnetic field created. The strength of magnetic field generated is proportional to the amount of current through the winding. Magnetic fieldproduced by a solenoid (coil of wire).
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Heya...
the answer is ---increases....
hope this helps
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the answer is ---increases....
hope this helps
#followme
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