Question

Help me.... solve n answer this...

Answer 1

Heya !!!


F = BlL


B =. l L / F




=> 5 cm =>

5 / 100 = 0 .05 m

now ,

B = lL / F



=> 50 * 0.05 / 10




=> 4 T

hence , option number D is correct !!

hope it helps you dear!!!

thanks !!!

Answer 2

hello friend...!!!

according to your given question we should find the magnetic field ...!!

we know that ,

F = B I L sin Ф 

here F  represents force and I represents current and L represents length .

from the question it is given that ,

F = 10N 

L = 5 cm

I = 50 A 

B = ???

therefore , 

F = B I L 

implies ,

B = F / I L 

B = 10 / (50 x 5 / 100 )   { here 5 / 100 is to convert cm to m }

therefore ,

B = 10 X 100 / 50 X 5 

therefore ,

B = 4 tesla.

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hope it helps...!!!