Which one of the following is used as electrode in the electrolysis of copper sulphate?
Sulphur
Zinc
Copper
Aluminum
The flow of current requires :
Medium
Closed conducting path
Open conducting path
All of them
The lower portion of a charged cloud generally carries :
Positive charge
Negative charge
Air
No charge
What is the principle behind electroplating?
Electro refining
Electrolysis
Conduction
Convection
Sea breeze flows from :
Land to sea
Sea to sea
Sea to land
Land to land
A circuit made up of a cell, a switch and a bulb is known as :
Parallel circuit
Series circuit
Simple circuit
Mixed circuit
Earth is a :
Proton bank
Electron bank
Neutron bank
All the above
Which one of the following is an insulator?
Plastic
Gold
The electrical appliances are all connected in which circuit ?
Complex circuit
Series parallel circuit
Lightning arrester was invented by :
Newton
Faraday
Einstein
Franklin
