The degree of hotness or coldness of a body is called :
Temperature
Coldness
Thermopotential
Heat
LED is :
Light emitting diode
Light emission diode
Light ejecting diode
Light ejection diode
In electroplating of gold on silver, which of the following statement is true?
only 1
only 2
both 1 and 4
both 2 and 3
Earth is a :
Proton bank
Electron bank
Neutron bank
All the above
Which one of the following is used as electrode in the electrolysis of copper sulphate?
Sulphur
Zinc
Copper
Aluminum
The upper portion of a charged cloud generally carries :
A positive charge
A negative charge
Air
No charge
In chemical effect of current what kind of energy transfer takes place?
Heat energy to mechanical energy
Chemical energy to electrical energy
Electrical energy to chemical energy
Mechanical energy to heat energy
The end to end connection is called :
Series connection
Parallel connection
Simple connection
Complex connection
The flow of current requires :
Medium
Closed conducting path
Open conducting path
All of them
The process of which heat is transferred without the help of any material medium is called :
Convection
Conduction
Radiation
Transmition
