Two identical coils each of self-inductance L , are connected in...

Two identical coils each of self-inductance

L

, are connected in series and are placed so close to each other that all the flux from one coil links with the other. The total self-inductance of the system is

Options

A $L$
B $2 L$
C $3 L$
D $4 L$

Correct answer

D. $4 L$

Step-by-step solution

No Solution

Practice Electromagnetic Induction on Quantrex Academy →

More from Electromagnetic Induction

An inductance L , a resistance R and a battery B are connected in series with a switch S… Olympiad workbook A circular loop of conducting wire of radius 1 cm is cut at a point A on its… Olympiad workbook A thin wire of length 1 m is placed perpendicular to the XY plane. If it is moved with… Olympiad workbook The physical quantity that has unit volt-second is Olympiad workbook A long straight wire A B of length L(L a, L b) and resistance R is connected to a time… Olympiad workbook A thick hollow cylinder of height h and inner and outer radii a and b(b>a) made up of a… Olympiad workbook A circular loop of radius r is placed inside another circular loop of radius R(R r) . The… Olympiad workbook A total charge Q is uniformly distributed over a non-conducting ring of radius r . There… Olympiad workbook Full Electromagnetic Induction list All Olympiad workbook PYQs