(1)silver 1.60 × 10^-8 ohm m. copper 1.62× 10^-8 ohm m Among silver and copper which one is better conductorand why?
(2) which metal and why would you advise to use in an electrical heating device ?
(3)what is meant by saying tht potential difference between two points is 1 volt?
(4)why does the connecting cord of an electrical heater not glow while the heating element does?
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1.silver is good condutor as it's resistivity is
low
2 copper VL b used..as it's resistivity is higher
3. word done to move unit charge from one point to other point is 1 joule.itscalled 1 volt between that points.
4.coz it's resistance is low and does not generati high loss of current in form of light or heat
low
2 copper VL b used..as it's resistivity is higher
3. word done to move unit charge from one point to other point is 1 joule.itscalled 1 volt between that points.
4.coz it's resistance is low and does not generati high loss of current in form of light or heat
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