10. The following table gives the resistivity of: Three samples:Resist

1.	10. The following table gives the resistivity of: Three samples:Resistivity - 1.6×10^-8 -5.2×10^-8 - 100×10^-6 ohm mWhich of these is suitable for making heating elements of electrical appliances and why?
Answer» The standard resistors are made of materials for which the resistivity is QUITE LARGE and effect of CHANGE of temperature on their resistance is negligible. So C is suitable for heating elements of electrical appliances among the given as it has more resistivity 100 ⨯100⨯10 -8 Ω m = 10,000 ⨯ 10 -8 Ω m

10. The following table gives the resistivity of: Three samples:Resistivity - 1.6×10^-8 -5.2×10^-8 - 100×10^-6 ohm mWhich of these is suitable for making heating elements of electrical appliances and why?

Answer»

The standard resistors are made of materials for which the resistivity is QUITE LARGE and effect of CHANGE of temperature on their resistance is negligible. So C is suitable for heating elements of electrical appliances among the given as it has more resistivity 100 ⨯100⨯10 -8 Ω m = 10,000 ⨯ 10 -8 Ω m

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10. The following table gives the resistivity of: Three samples:Resistivity - 1.6×10^-8 -5.2×10^-8 - 100×10^-6 ohm mWhich of these is suitable for making heating elements of electrical appliances and why?​

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10. The following table gives the resistivity of: Three samples:Resistivity - 1.6×10^-8 -5.2×10^-8 - 100×10^-6 ohm mWhich of these is suitable for making heating elements of electrical appliances and why?