In all electric machines, basic action taking place is
In all electric machines, basic action taking place is
In all electric machines, basic action taking place is Read More »
SECONDARY WAVES (S-WAVES): UPSC Daily Important Topic | 7 February 2022
SECONDARY WAVES (S-WAVES) Topic—Interior of earth ✓ They are recorded second on the seismograph or S-waves are also called as transverse waves or shear waves or distortional waves. ✓They are analogous to water ripples or light waves. ✓ Transverse waves or shear waves mean that the direction of vibrations of the particles in the medium
SECONDARY WAVES (S-WAVES): UPSC Daily Important Topic | 7 February 2022 Read More »
Armature voltage control is suitable if d.c. machine is driven at constant
Armature voltage control is suitable if d.c. machine is driven at constant
Armature voltage control is suitable if d.c. machine is driven at constant Read More »
A dc shunt motor is driving a constant torque load with rated excitation. If the field current is reduced to half, then the speed of the motor will become
A dc shunt motor is driving a constant torque load with rated excitation. If the field current is reduced to half, then the speed of the motor will become
The armature current drawn by a dc motor is proportional to
The armature current drawn by a dc motor is proportional to
The armature current drawn by a dc motor is proportional to Read More »
If the armature current of a dc motor is increased keeping the field flux constant, then the developed torque
If the armature current of a dc motor is increased keeping the field flux constant, then the developed torque
When an electric traian is moving down a hill the dc motor acts as
When an electric traian is moving down a hill the dc motor acts as
When an electric traian is moving down a hill the dc motor acts as Read More »
The direction of rotation of a dc motor can be reversed by reversing the connection to
The direction of rotation of a dc motor can be reversed by reversing the connection to
The direction of rotation of a dc motor can be reversed by reversing the connection to Read More »
In dc motor, the amount of flux leakage depends on
In dc motor, the amount of flux leakage depends on
In dc motor, the amount of flux leakage depends on Read More »