WorksheetsThermal and Electrical conductivity
Total questions: 10
Worksheet time: 10mins
A copper block and air mass having similar dimensions are subject of symmetrical heat transfer from once face each block . the other face of that block will be reaching to the same temperature at a rate
Faster in air block
Faster in copper block
Equal in both
Cannot be predicted
In a complete electrical circuit, which materials do electricity permits flow through?
Electrical insulators
Only leads or wires
Electrical conductors
Only batteries
Assertion (A) nonmetals are having higher thermal conductivity than metals Reason (R) Free electrons in the metals and higher than those of non metals
Both A and R are true and R is correct explanation of A
Both and A and R are true but R not a correct explanation of A
A is true and R is false
A is false and R is true
What does an electrical insulator?
It does not allow electricity to pass through it easily
It does not allow heat to travel through it easily
It allows heat to travel through it easily
It allows electricity to pass through it easily
In which one of the following is the heat energy propagation minimum due to conduction heat transfer
Air
Lead
Copper
Water
Which of these is a good electrical conductor?
Water
Sweat
The human body
All of the above
Most metals are good conductor of heat because of
Transport of energy
Free electrons and frequent collision of atoms
Capacity to absorb energy
Capacity to hold mass.
Ions are charged particles. They are formed when an atom
Loses electrons
Gains electrons
Shares electrons
Gains or loses electrons
What Is The Difference Between Heat And Temperature?
Solids make better ______________________ Than Liquids
