JEE Main 11 Jan 2019 Shift 1 Solved Paper

Section: Physics

Question : 12 of 90

Marks: +1, -0

There are two long co-axial solenoids of same length l. the inner and outer coils have radii r1 and r2 and number of turns per unit length n1 and n2 respectively. The rate of mutual inductance to the self-inductance of the inner-coil is :

[11 Jan 2019 Shift 1]

n2
n1
,
r22
r12
n2
n1
,
r2
r1
n1
n2
n2
n1

Validate

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