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CGP EDU Academic Team
Published on: September 12, 2026
Two concentric circular coils with radii 1 cm and 1000 cm and number of turns 10 and 200 respectively are placed coaxially with centers coinciding. The mutual inductance of this arrangement will be_____x 10 -8 H. (Take, π 2 = 10)
Text Solution
Verified by ExpertsThe correct answer is:
4
(4)
Let the magnetic field of the 200 turns be B 1 . The formula of magnetic field is given by 
Let r = 1000 cm. Thus,
A The flux through the coil of radius r 1 = 1 cm is 
= 4 x 10 -8 H
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