Question

(4). A piece of soft iron is inserted into a solenoid carrying current. Now, the magnetic field
strength of the solenoid
(a) increases
(b) decreases
(c) remains the same
(d) first increases and then decreases
(5). The coil of an electric iron is made up of
(a) steel
(b) brass
(c) bronze
(d) nichrome​

Answer 1

(4). a.) Increas

(5). d.) Nichrome

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