- (A) heating
- (B) hammering
- (C) by inductive action of another magnet
- (D) by all above methods
Electrical Engineering Mcqs
- (A) Rectifiers
- (B) Motor converters
- (C) Motor-generator sets
- (D) Rotary converters
- (E) All of the above
- (A) 2 AT
- (B) 4 AT
- (C) 6 AT
- (D) 10 AT
- (A) the highest permeability of the iron rod
- (B) the lowest permeability of the iron rod
- (C) the permeability at the end of the iron rod
- (D) the permeability almost in non-magnetised state
- (A) The magnetic flux inside an exciting coil is lower than its outside surface
- (B) The magnetic flux inside an exciting coil is zero
- (C) The magnetic flux inside the exciting coil is greater than its outside surface
- (D) The magnetic flux inside the exciting coil is same as on its outside surface
- (A) decreases with increasing cross sectional area of material
- (B) increases with increasing cross-sec-tional area of material
- (C) does not vary with increasing cross-sectional area of material
- (D) any of the above
- (A) is constant and has same value in energy part of the magnetic field
- (B) increases continuously from initial value to final value
- (C) decreases continuously from initial value to final value
- (D) first increases and then decreases till it becomes zero
- (A) It assures a position right angle to magnetic field
- (B) It starts rotating
- (C) It assures a position which follows a line of magnetic flux
- (D) None of the above
- (A) Ferromagnetic
- (B) Paramagnetic
- (C) Diamagnetic
- (D) None of the above
- (A) a line vertical to the flux lines
- (B) the mean length of a ring shaped coil
- (C) a line of magnetic flux in a non-uniform field
- (D) a line of magnetic flux which does not follow the designed path
