Which of the following are the required properties of material used for heating element?
1) High melting point
2) High Electrical resistance
3) Low temperature coefficient of resistance
Iron–carbon alloys are called:
The principle used in the designing of thermocouple is:
The temperature at which anti-ferromagnetic materials converts to paramagnetic is known as
Match List-I with List-II
Which of the following is true related to the applications of Hall Effect?
1) To find the type of semiconductor (whether P or n type)
2) To measure conductivity
___________ is the property of conductor which is opposite to the property that opposes flow of current.
Which of the following materials can be used for permanent magnets?
Which of the following requirements are necessary for a material to be used as heating element.
1. High electrical resistivity.
2. Good oxidation resistance.
3. High thermal expansion.
Which of the following statement is/are correct?