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Chapter 27: Q. 29 (page 762)

The electric field inside a 30cm long copper wire is 5.0mV/m. What is the potential difference between the ends of the wire?

Short Answer

Expert verified

The potential difference between the ends of the wire is1.5mV.

Step by step solution

01

Given Information

Copper wire length=30cm

Electric field=5.0mV/m

02

Explanation

The electric field can be given as,

E=Ud

Here, dis the distance across which the potential difference exists and Uis the potential difference. The potential difference can be determined using our definition of the electric field, which is:

U=Ed

Substitute the values,

role="math" localid="1648978160272" U=0.005mV/m×0.3m

=1.5mV

03

Final Answer

Hence, the potential difference between the ends of the wire is1.5mV.

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