Define the term 'electrical conductivity' of a metallic wire. Write its S.I. unit.

Name: Define the term 'electrical conductivity' of a metallic wire. Write its S.I. unit.
Uploaded: 2020-01-06
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Answer 1

The electrical conductivity of a metallic wire is defined as the measure of a material's ability to allow the transport of an electric charge.
$σ = \frac{1}{ρ},$ S. I. unit = (S m $^{- 1}$ )

Answer 2

The electrical conductivity of a metallic wire is defined as the measure of a material's ability to allow the transport of an electric charge.

σ = \frac{1}{ρ},

S. I. unit = (S m

^{- 1}

)

Define the term 'electrical conductivity' of a metallic wire. Write its S.I. unit.

The electrical conductivity of a metallic wire is defined as the measure of a material's ability to allow the transport of an electric charge.
$σ = \frac{1}{ρ},$ S. I. unit = (S m $^{- 1}$ )

The current in a metallic conductor is plotted against voltage at two different temperatures $T_{1}$ and $T_{2}$ . Which is correct

A current of 5 amperes is passing through a metallic wire of cross-sectional area $4 \times 1 0^{- 6}$ m2. If the density of the charge carrier in the wire is $5 \times 1 0^{26}$ /m3, the drift velocity of the electrons is :

Consider a copper wire of length $L$ , cross-sectional area $A$ . It has $n$ numbers of free electrons per unit volume. Which of the following is the correct expression of drift velocity of the electrons when the wire carries a steady current $I$ ?

The electric field E is uniform in the shaded area and makes an angle $θ$ with the normal. The conductivity of the material in which the area S lies is $σ$ . The electric current flowing out of the shaded area is

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Define the term 'electrical conductivity' of a metallic wire. Write its S.I. unit.

The electrical conductivity of a metallic wire is defined as the measure of a material's ability to allow the transport of an electric charge. σ=ρ1​, S. I. unit = (S m−1)

The current in a metallic conductor is plotted against voltage at two different temperatures T1​ and T2​. Which is correct

A current of 5 amperes is passing through a metallic wire of cross-sectional area 4×10−6 m2. If the density of the charge carrier in the wire is 5×1026 /m3, the drift velocity of the electrons is :

Consider a copper wire of length L, cross-sectional area A. It has n numbers of free electrons per unit volume. Which of the following is the correct expression of drift velocity of the electrons when the wire carries a steady current I ?

The electric field E is uniform in the shaded area and makes an angle θ with the normal. The conductivity of the material in which the area S lies is σ. The electric current flowing out of the shaded area is

Revise with Concepts

Ohm's Law

Ohm's Law and its Experimental Verification

Resistance and Ohm’s Law

Derivation of Ohm's Law

Ohm's Law, Resistance and Resistivity

The electrical conductivity of a metallic wire is defined as the measure of a material's ability to allow the transport of an electric charge.
$σ = \frac{1}{ρ},$ S. I. unit = (S m $^{- 1}$ )

The current in a metallic conductor is plotted against voltage at two different temperatures $T_{1}$ and $T_{2}$ . Which is correct

A current of 5 amperes is passing through a metallic wire of cross-sectional area $4 \times 1 0^{- 6}$ m2. If the density of the charge carrier in the wire is $5 \times 1 0^{26}$ /m3, the drift velocity of the electrons is :

Consider a copper wire of length $L$ , cross-sectional area $A$ . It has $n$ numbers of free electrons per unit volume. Which of the following is the correct expression of drift velocity of the electrons when the wire carries a steady current $I$ ?

The electric field E is uniform in the shaded area and makes an angle $θ$ with the normal. The conductivity of the material in which the area S lies is $σ$ . The electric current flowing out of the shaded area is