Related Questions

Which one of the following is an insulator?
A copper
B wood
C mercury
D aluminium
Which of the following is an insulator?
A Mercury
B Carbon
C Germanium
D Glass
Which of the following acts as an insulator against heat, cold and as a shock-absorber in the body?
A Dermis
B Epidermis
C Subcutaneous fat layer
D None of the above
Identify the error from the quotation words in the following sentence : Rubber is 'a good' 'insulator' 'of electricity' and 'so does' glass. 'No Error'.
A a good
B insulator
C of electricity
D so does
which of the followings is used for making Electric Insulator>
A Polythene
B Nylon -66
C PVC
D Teflon
Which of the followings is used for making Electric Insulator?
A Polythene
B Nylon-66
C PVC
D Teflon
In solid insulator materials having only one kind of atom, the types of polarization which exist are
A Electronic only
B Electronic and ionic
C Electronic, ionic and permanent
D Electronic and permanent
The insulation ability of an insulator with the presence of moisture would
A Increase
B Decrease
C Remain unaffected
D May increase/decrease depending on temperature and thickness of insulation
The forbidden gap in an insulator is
A Large
B Small
C Nil
D Any of the above
What is the thermal conductivity of a perfect heat insulator?
A Zero
B One
C ∞
D Between 0 and ∞

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