- Aincrease
- Bdecrease
- Ceither increase or decrease
- Dnone of the above
Explanation:
LPT= leading pole tip
TPT= tailling pole top
Considering armature reaction.
where GNA=Geometrical axis
MNA=Magnetic neutral axis
here clearly see that TPT side flux increases due to armature in case of generator.
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Photon of 5.5 eV energy fall on the surface of the metal emitting photoelectrons of maximum kinetic energy 4.0 eV. The stopping voltage required for these electrons are
|
(a) 5.5 V |
(b) 1.5V |
(c) 9.5V |
(d) 4.0V |
During the nuclear fusion reaction
|
(a) A heavy nucleus breaks into two fragments by itself |
|
(b) A light nucleus bombarded by thermal neutrons breaks up |
|
(c) A heavy nucleus bombarded by thermal neutrons breaks up |
|
(d) Two light nuclei combine to give a heavier nucleus and possibly other products |
A point source of light is placed in front of a plane mirror:
In extrinsic P and N-type, semiconductor materials, the ratio of the impurity atoms to the pure semiconductor atoms is about
|
(a) 1 |
(b) |
(c) |
(d) |
What is the potential energy of the equal positive point charges of 1μC each held 1 m apart in air
|
(a) 9 |
(b) 9 |
(c) 2 eV/m |
(d) Zero |