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When a conducting loop of resistance 10 \Omega and area 10 cm2 is removed from an external magnetic field acting normally, the variation of induced current in the loop with time is shown in the figure.

Find the

(i) total charge passed through the loop.

(ii) change in magnetic flux through the loop.

(iii) magnitude of the magnetic field applied

 

 
 
 
 
 

Answers (1)

i) Q=areaunder I-t graph

=0.5\times0.4\times1=0.2C

ii)

 \\Q=\frac{change\ in\ magnetic\ flux}{R}\\change\ in\ magnetic\ flux=R\times0.2C=2wb

iii) Initial magnetic flux

=B\times10\times10^{-4}wb

Final magnetic flux=0

\\2=B\times10^{-3}-0\\=2\times10^{3}T

Posted by

Safeer PP

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