Transformer
Why is a transformer rated in KVA?
The machines which consumed power are rated in KW. But the main work of transform…
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Transformer
Why is a transformer rated in KVA?
The machines which consumed power are rated in KW. But the main work of transform…
Basic Electrical
What do you understand by E.M.F and potential difference of a call ?
Ans : The voltage across the terminals of a cell in open circuit is called E.M.F…
Basic Electrical
What is voltage ?
Ans : Voltage is the potential, potential difference or electromotive force of a…
Basic Electrical
What do you mean by short circuit ?
Ans : An accidental connection of negligible resistance joining two wires of diff…
Laws
Can you apply ohm’s law to all types of electrical conductor ?
Ans: No. Ohm’s law can be applied only in the cases of conductor through metals a…
Laws
Define Ohm’s law.?
Ans : Ohm’s law states that at the constant temperature, the current flowing in …
Basic Electrical
What is the effect of heat on resistance ?
Ans : Temperature Coefficient of resistance is defined as the change in resistance …
Basic Electrical
What is the unit of resistance ?
Ans : The unit of resistance is ‘ohm’.
Basic Electrical
What is resistance ?
Ans : Resistance is the property of a substance which opposes the flow of electric…
Basic Electrical
What is “Dielectric strength”?
Ans : Dielectric strength is the maximum kilovolts per millimeter which an insula…
Basic Electrical
What are A.C. and D.C. ?
Ans : A.C is the abbreviation of an alternating current which flows to and from i…
Basic Electrical
What is electricity ?
Ans : Electricity is a general term used for all phenomena caused by electric …
Transformer
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