TNPSC Group 2 General Science Study Material in English Pdf - 2

Question: 6

All the magnetic materials lose their magnetic properties when

(A) Dipped in water

(B) Dipped in oil

(C) Brought near a piece of iron

(D) Strongly heated

Question: 7

When the radius of the T.G. coil is decreased, its sensitiveness

(A) Increases

(B) Decreases

(C) Remains unaltered

(D) None of these

Question: 8

Which one of the following is used in storage batteries?

(A) Copper

(B) Zinc

(C) Lead

(D) Tin

Question: 9

Laws of electrolysis is given by

(A) Maxwell

(B) Lenz

(C) Bohar

(D) Faraday

Question: 10

In a hydel station the motion produced in turbines is due to the

(A) Flow of water

(B) Production of steam

(C) Burning of diesel

(D) Burning of coal