Question

Which of the following is a conductor?
(a) 1×10-⁸ ohm.m (b) 10¹⁵ ohm.m (c) 1×10-⁶ ohm.m (d) 10¹² ohm.m​

Answer 1

Answer:

For making the element of a heating device, we use an alloy as : <br> (i) its resistivity changes less rapidly with changes in temperature and <br> (ii) it does not oxidise (burn) readily at high temperature. The resistivities of materials

lie in the range of resistivity of alloys. (In fact, material

is nichrome and material

is manganin. We use nichrome for making an element of a heating device).

Answer 2

Answer:

hi my friend ☺️

the answer is

option c 1×10-6 ohm.m

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