1.

Two wires of equal length, one of copper and the other of manganin [an alloy] have the same thickness. Which one can be used for i] electrical transmission lines ii] electrical heating devices? Why?

Answer»

Solution :i] Copper should be used in the transmission LINES because copper is a REALLY GOOD conductor and does not heat the surface like manganin.
ii] Whereas manganin is used in ELECTRICAL heating devices because the heat is trapped and results in the heating effect of ELECTRICITY.


Discussion

No Comment Found