Electrical Engineering mcq-Basic Concept MCQ questions answers-1

Wednesday, 6 November 2013

Electrical Engineering-Basic Concept MCQ questions answers



1.       The mass of a proton is about 1837 times the mass of electron.

2.       The electrons in the last orbit of an atom are called valance electrons.

3.       In the number of valance electrons of an atom is less than 4, the substance is usually conductor.

4.       In the number of valance electrons of an atom is more than 4, the substance is usually
              An insulator.

5.      In the number of valance electrons of an atom is less than 4, the substance is usually a  
       semi-  conductor.

6.       The electric current is due to the flow of both positive and negative charges.

7.       E.M.F in a circuit maintains potentials difference.

8.       The electric current in a metallic conductor is due to the flow of electrons only.

9.        Potentials difference has the unit of energy.

10.    The electric current in a liquid is due to the flow of negative and positive ions both.


          

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