ElectroMagnetic InductionHard
Question
Two coils are made of copper wires of same length In the first coil the number of turns is 3n and radius is r. In the second coil number of turns is n and radius is 3r the ratio of self inductances of the coils will be :-
Options
A.9 : 1
B.3 : 1
C.1 : 3
D.1 : 9
More ElectroMagnetic Induction Questions
L,C and R represent physical quantities inductance, capacitance and resistance. The combination which has the dimensions...The cause of diamagnetism is :-...In an ideal parallel LC circuit, the capacitor which is charge by connecting it to a D.C source which is then disconnect...The flux linked with a coil at any instant ′t′ is given by φ = 10t2 - 50t + 250 The induced emf at t = ...Some magnetic flux is changed in a coil of resistance 10 ohm. As a result an induced current is developed in it, which v...