Legendary singer Lata Mangeshkar passed away at the Breach Candy Hospital in Mumbai, on February 6, 2022. The veteran singer, popularly known as the Melody Queen, was 92. She had been admitted to hospital on 8 January after having tested positive for COVID-19. She started her singing career at the age of 13 and recorded […]
Legendary Singer Lata Mangeshkar passes away At 92 Read More »
A dc shunt motor has external resistance R1 in the field circuit and resistance R2 in the armature circuit. The starting armature current for the motor will be minimum when
If the supply voltage to a shunt motor is increased by 25%, which of the following will decrease?
The output power of any electrical motor is taken from
The output power of any electrical motor is taken from Read More »
Which of the following dc motors has the least reduction in speed from no load to rated load?
By putting a variable resistance (diverter) across the series field in a dc series motor, speed above normal can be obtained because
Two dc series motors connected in series are driving the same mechanical load. If now the motors are connected in parallel, the speed becomes
In a dc shunt motor, field excitation is kept at maximum value during starting to
In a dc shunt motor, field excitation is kept at maximum value during starting to Read More »
A dc shunt motor is driving a mechanical load at rated voltage and rated excitation. If the load torque becomes double, then the speed of the motor
