Jaya Legge
2021-04-02
Answered

For what electric field strength would the current in a2.0-mm-diameter nichrome wire be the same as the current in a1.0-mm-diameter aluminum wire in which the electric field strengthis 0.0080 N/C?

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Arham Warner

Answered 2021-04-04
Author has **102** answers

Let us consider

Let us consider

Similarly let us consider

Similarly let us consider

Similarly let us consider

Similarly let us consider

we know that current density

Given

therefore

Given that

Jeffrey Jordon

Answered 2021-10-01
Author has **2495** answers

Diameter of nichrome wire

Diameter of aluminum wire

Resistivity of nichrome

Resistivity of aluminum

Electric field strength of Aluminum wire

Electric field strength of nichrome wire

The relation between diameter of the wire and electric field strength is

obtained from using the following relations

V= I R

The relation between electric field strength and diameter of the wire is

Therefore we have

Where k is constant of proportionality

For nichrome we have

and For aluminum we have

Here it is given that current passes through both the wires are same, so that we have

therefore

Now substituting the given data, we get

=0.1063 V/m

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