When the speed of the DC motor is Increases its Armature current
When the speed of the DC motor is Increases its Armature current
When the speed of the DC motor is Increases its Armature current Read More »
DC Motor MCQs
A 250 V, DC shunt motor takes a line current of 20 A. The resistance of shunt field winding is 200Ω and resistance of the armature is 0.3 Ω Find the armature current and the back e.m.f.
A 250 V, DC shunt motor takes a line current of 20 A. The resistance of shunt field winding is 200Ω and resistance of the armature is 0.3 Ω Find the armature current and the back e.m.f.
In D.C motors Diverters are used in
In D.C motors Diverters are used in
In D.C motors Diverters are used in Read More »
The flux density under trailing pole tip in DC motor tends to
The flux density under trailing pole tip in DC motor tends to
The flux density under trailing pole tip in DC motor tends to Read More »
The function of the Dummy coil is to
The function of the Dummy coil is to
The function of the Dummy coil is to Read More »
The function of yoke in a DC machine is
The function of yoke in a DC machine is
The function of yoke in a DC machine is Read More »
In a DC shunt motor if field current is decreased then the speed of the motor is
In a DC shunt motor if field current is decreased then the speed of the motor is
In a DC shunt motor if field current is decreased then the speed of the motor is Read More »
When the ratio of back E.MF to applied voltage is ___ than the mechanical power develop by the shunt generator is maximum?
When the ratio of back E.MF to applied voltage is ___ than the mechanical power develop by the shunt generator is maximum?
Which of the following will decrease when the supply voltage of a D.C motor is increased?
Which of the following will decrease when the supply voltage of a D.C motor is increased?