Trickle charging of a storage battery helps to
A). maintain proper electrolyte level
B). increase its reserve capacity
C). prevent sulphation
D). keep it fresh and fully charged
1. The disadvantage of impedance matching is that it ___________
3. The two basic components of a Thevenin equivalent ac circuit are
5. In the normal operation of an SCR, anode is ___________ w.r.t. cathode
6. No-load on a transformer is carried out to determine
7. The term 'squirrel-cage' applies to a type of three-phase ac generator.
8. A closed switch has a resistance of
9. at a point is equal to the negative potential gradient at that point.
10. Which of the following variety of copper has the best conductivity ?