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How much time will be taken by an electr...

How much time will be taken by an electron to move distance I = 1km in a copper wire of cross section `A = 1mm^2` if it carries a current I = 4.5A?`

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To find out how much time it will take for an electron to move a distance of 1 km in a copper wire carrying a current of 4.5 A, we can follow these steps: ### Step 1: Understand the relationship between current, drift velocity, and time The current \( I \) in a conductor can be expressed as: \[ I = n \cdot e \cdot A \cdot v_d \] where: ...
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