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
LED is :
Light emitting diode
Light emission diode
Light ejecting diode
Light ejection diode
The flow of current requires :
Medium
Closed conducting path
Open conducting path
All of them
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
Earth is a :
Proton bank
Electron bank
Neutron bank
All the above
Conduction is a process of :
Transfer of electron between the atoms during rubbing
Charging of an object by touching it with an electrically charged object.
Charging a body by bringing it close to a charged body
The process of which heat is transferred without the help of any material medium is called :
Convection
Conduction
Radiation
Transmition
The negatively charged particles in an atom is called :
electron
Proton
Neutron
Positron
The electrical appliances are all connected in which circuit ?
Series circuit
Parallel circuit
Complex circuit
Series parallel circuit
The transfer of heat due to the actual movement of particles is called :
All of these
