Resistance of lead is greater than that of gold.1. Do you agree? 2. W

1.	Resistance of lead is greater than that of gold.1. Do you agree? 2. What do you mean by resistance? 3. What do you mean by resistivity?
Answer» 1. Yes. 2. Resistance is the hindrance offered by a substance to the flow of electricity through it. 3. Resistivity is the resistance of a conductor of length 1 cm and area of cross section 1 cm². R ∝ \(\frac{l}{A}\) Or, R = ρ \(\frac{l}{A}\) where R → Resistance and ρ → resistivity. When l = 1 cm and A = 1 cm then, R = ?

Resistance of lead is greater than that of gold.1. Do you agree? 2. What do you mean by resistance? 3. What do you mean by resistivity?

Answer»

1. Yes.

2. Resistance is the hindrance offered by a substance to the flow of electricity through it.

3. Resistivity is the resistance of a conductor of length 1 cm and area of cross section 1 cm².

R ∝ \(\frac{l}{A}\)

Or, R = ρ \(\frac{l}{A}\)

where R → Resistance and ρ → resistivity.

When l = 1 cm and A = 1 cm then, R = ?

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Resistance of lead is greater than that of gold.1. Do you agree? 2. What do you mean by resistance? 3. What do you mean by resistivity?

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