ElectroMagnetic InductionHard
Question
In a D.C. motor the back emf will be maximum at the :-
Options
A.Start condition
B.Off condition
C.Position of maximum speed
D.all the time
More ElectroMagnetic Induction Questions
A conducting loop is placed in uniform magnetic field with its plane perpendicular to the field. An emf is induced in th...The time constant of an iductance coil is 2.0 × 10-3 s. When a 90 Ω resistance is joined in series, the time c...Figure shows a conducting disc rotating about its axis in a perpendicular magnetic field B. A resistor of resistance R i...The frequency of oscillation of current in the inductor is:...AB and CD are fixed conducting smooth rails placed in a vertical plane and joined by a constant current source at its up...