A long solenoid of cross-sectional area 28๐๐2
A coil ๐ถ of 160 turns of insulated wire is wound tightly around the centre of the solenoid. If ๐ is aย
constant equal to 1.5 ร 10
3๐โ1
and ๐๐ is the permeability of free space, calculate for a current ofย
3.5๐ด in the solenoid; (i) the magnetic flux at the centre of the solenoid. (ii) the flux linkage in theย
coil ๐ถ. (iii) If the current in the coil ๐ถ is reversed in 0.80๐ , calculate the average e.m.f. induced inย
the coil ๐ถ.
(i) The magnetic flux at the centre of the solenoid:
(ii) The flux linkage in theย coil ๐ถ:
(iii) If the current in the coil ๐ถ is reversed in 0.80๐ , calculate the average e.m.f. induced inย the coil ๐ถ:
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