100+ TNPSC Group 2 Exam Previous Year Question Paper with Answers - 2

Question: 6

The electrolyte in the dry cell is

(A) Ammonium chloride

(B) Acid of sulphur

(C) Manganese dioxide

(D) Zinc

Question: 7

Magnetite is a/an

(A) Electromagnet

(B) Natural magnet

(C) U-shaped magnet

(D) None of these

Question: 8

Magnetic field inside a solenoid is

(A) Directly proportional to current

(B) Directly proportional to its length

(C) Inversely proportional to the total number of turns

(D) Inversely proportional to current

Question: 9

Electron volt (eV) is a unit of

(A) Current

(B) Charge

(C) Energy

(D) Potential

Question: 10

Two free parallel wires carrying currents in opposite directions.

(A) Attract each other

(B) Repel each other

(C) Do not affect each other

(D) None of these