WorksheetsPhysics Paper 6C Unit V
Total questions: 10
Worksheet time: 8mins
1 The device used to convert mechanical energy into electrical energy
Motor
Generator
Transformer
Indicator
The EMF equation of DC generator is
e=φNPZ/60
e=φNPZ/60A
e=φNP60/ZA
e=ZA60/φNP
The part of DC motor which converts AC into DC
(a)
The working of DC motor / generator can be explained using
Faraday's law
Lenz law
Fleming's right hand rule
Fleming's left hand rule
Write the principle of working of DC motor
The pole shoes in DC motor of this shape
(a)
The difference between AC generator and DC generator is based on the working of this
Brushes
Direction of current
Commutator
Magnetic field
The speed of the DC motor depends upon
Magnetic Field
Number of Poles
Number of conductors in armature
All the three
The speed of the DC motor is measured in
revolutions per minute
rotation per minute
rounds per minute
revolutions per second
Voltage equation of a DC motor
E=V-IR
E=V+IR
V=E-IR
V = E +IR
