Samacheer Kalvi Class 8 Science Electricity Questions - 1

Question: 1

An electrolyte _____

(A) Should be able to form positive and negative ions

(B) Should be able to conduct charge without dissociating

(C) Has positive charge

(D) Has negative charge

Question: 2

_____ wire is used in the filament of the bulbs.

(A) Tungsten

(B) Nichrome

(C) Copper

(D) None

Question: 3

Electricity produced on rubbing is _____

(A) Electromagnet

(B) Static energy

(C) Current electricity

(D) None of these

Question: 4

When an ebonite rod is rubbed with fur, the charge acquired by the fur is

(A) Positive

(B) Negative

(C) Partly positive and partly negative

(D) None of these

Question: 5

An electroscope has been charged by induction with the help of charged glass rod. The charge on the electroscope is

(A) Positive

(B) Negative

(C) Both positive and negative

(D) None of the above

Question: 6

Which of the following a simple circuit must have?

(A) Battery, Wire, Switch

(B) Energy Source, Wire, Switch

(C) Energy Source, Wire, Load

(D) Energy Source, Battery, Load

Question: 7

Electroplating is based on _____ effect of electricity.

(A) Physical

(B) Magnetic

(C) Chemical

(D) Heating

Question: 8

Electric charge can be transferred from a charged object to another through _____

(A) Air

(B) Insulator

(C) Vacuum

(D) Conductor

Question: 9

All metals are _____

(A) Electrolytes

(B) Insulators

(C) Conductors

(D) None of these

Question: 10

The electrification of two different bodies on rubbing is because of the transfer of ______

(A) Protons and neutrons

(B) Neutrons

(C) Protons

(D) Electrons