Which of the following motors is usually used in house-hold refrigerators ?
Which of the following motors is usually used in house-hold refrigerators ?
Which of the following motors is usually used in house-hold refrigerators ? Read More »
April 2022
Which of the following motors is most suitable for signalling devices and many kinds of timers ?
Which of the following motors is most suitable for signalling devices and many kinds of timers ?
Why are the D.C. motors preferred for traction applications ?
Why are the D.C. motors preferred for traction applications ?
Why are the D.C. motors preferred for traction applications ? Read More »
Which of the following motors one will choose to drive the rotary compressor ?
Which of the following motors one will choose to drive the rotary compressor ?
Which of the following motors one will choose to drive the rotary compressor ? Read More »
If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will
If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will
If the speed of a D.C. shunt motor is increased, the back e.m.f. of the motor will Read More »
If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking
If the terminals of armature of D.C. motor are interchanged, this action will offer following kind of braking
The armature voltage control of D.C. motor provides
The armature voltage control of D.C. motor provides
The armature voltage control of D.C. motor provides Read More »
If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor
If a D.C. motor designed for 40°C ambient temperature is to be used for 50°C ambient temperature, then the motor
For a D.C. shunt motor if the excitation is changed
For a D.C. shunt motor if the excitation is changed
For a D.C. shunt motor if the excitation is changed Read More »