At room temperature, copper has free electron density of \[8.4\times { – McqOptions

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1.	At room temperature, copper has free electron density of \[8.4\times {{10}^{28}}\] per \[{{m}^{3}}.\] The copper conductor has a cross-section of \[{{10}^{-6}}m\] and velocity in copper is
A.	\[36{}^\circ C\]
B.	\[83{}^\circ C\]
C.	\[63{}^\circ C\]
D.	\[33{}^\circ C\]
Answer» D. \[33{}^\circ C\]

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