[Xmat]

Module 3 June 24

1.Mmf – work done
2.Numerical:-0.2 v
3. Impedance:-5ohm
4.Numerical :- 5 *10 to the power -7
5.Coulomb:-6.25*10 to the 6.power 18
7.Brushes Less motor consists of
8Power numerical :- 16 Watta

9.Conventional current:-is opposite to electron flow

10.Resistance and current :- linear

11.Electromagnetic is …..:-

12.Mark the in correct Statement

13. Wire wound :- large current and ..

14.synchro motor :-

15.dc system :- constant current in circuit

16.conductance is reciprocal of resistance and admittance :-true and false

17.power factor is :-ratio of true power to apparent power

18. Transformer efficiency is most when :- ..
19. Capacitor :-i leads v

20. Transformer runs on :- ac and pulsating dc

21. -ve is for :- oppose EMF ( sab se bada statement

22. Low pass
23.filter earth :- low pass

24 .band stop

25.Magnetic flux in air gap is due to :- a stator excitation b .rotor excitation c.both

26.kuch toh question jiska option:- rheo stat th a

27. Best conductor Silver

28.form factor:- ratio of RMS value to average value

29. Permiability less than 1 :- dia

30. Maxwell :- kirchoff voltage law

31. Resistance R1.R2/R1+R2

32. Magnetic to zero :- Curie point

33.potentiometer :- variable resistor

34. To oppose armature reaction :- compensating winding

35. Power formala voltage and current

36. Battery :- series parallel both

37. generator load transfer efficiency
Rl max
Ri min
Rl=Ri
38.Bismuth .dia magnetic

39.Yes…if the current is increased in conductor then there is a self induced voltage according to lenzs law
Aid in Current
Aid in Voltage
Current will be in opposite direction of conductor

40.Magnetism wala tha
Permittivity
Absolute permeability
Relative permeability
B&C

41Motor runs in High speed (didn’t remember exactly question)
a) series
b) shunt
c)cumulative
d) differential
41.phase angle 3 phase :- 120 degree
42. Current 10, resistance 10 power? 1000 W
43.

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