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Grade: 12th pass

                        

if current is passed through spring then spring will ? (A)expand (B) compress (C)remain same (D)non of these Please,also mention reason behind it.

4 years ago

Answers : (2)

Umakant biswal
5359 Points
							
@ pranav 
when a current will pass through the spring the magnetic filed will produce since the current pass in same direction in all coil of spring , the magnetic field wil have same direction all coils . 
this causes the spring to reduce its length , 
so, compress ( option 2 ) turns out to be the correct answer . 
HOPE IT CLEARS ..
4 years ago
Aman
15 Points
							
option B is correct. Because we can treat spring as solenoid  and when current passes through solenoid Magnetic field is produced on the axis of solenoid B = (μNi)/L 
.•. B is inversely proportional to Current .
Hence when current is passed through coil the magnetic field is produced hence length is reduced
 
   I hope it clears concept
one year ago
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