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Phase Advancer
Explain What is Phase Advancer?
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DC Motor Amature Control
Why armature control is used, not the field control for DC motors?What is the drawbacks in field control method?
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Lightening Arrestor
Location of lighting arrestor should be near transformer or not? Why?
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p-n Junction
Why gold is added to the p-n junction?
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Synchronous Generator
How and when synchronous generator acts as a synchronous condenser?
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Tripper Drops
Consider you have a tripper at your house. The instant you switch on your motor, the tripper drops. What could be the problem?
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Wattmeter
Wattmeter has two coils in it-the current coil & pressure coil, why is the pressure coil so named? How is the power being measured by the Wattmeter?
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Induction Motor Rotation Direction
Why does Table Fan rotates Clockwise while Ceiling Fan rotates anti-clockwise? Any technical reason?