A solenoid is connected to a battery so that a steady current flows through it. If an iron core is inserted into the solenoid, the current will
(a) increase
(b) decrease
(c) remain same
(d) first increase then decrease
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A solenoid is connected to a battery so that a steady current flows through it. If an iron core is inserted into the solenoid, the current will decrease...
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( b ) decrease
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