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An electorn moves in a circle of radius ...

An electorn moves in a circle of radius 10cm with a constant speed of `4.0xx10^(6)ms^(-1)`.Find the electric current at a point on the circle.

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To find the electric current at a point on the circle where an electron moves, we can follow these steps: ### Step 1: Understand the relationship between current, charge, and time The electric current \( I \) is defined as the charge \( q \) that passes through a point in a circuit per unit time \( t \): \[ I = \frac{q}{t} \] In this case, the charge \( q \) is the charge of an electron, denoted as \( e \). ...
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Knowledge Check

  • Find the area of a circle of radius 5.6 cm.

    A
    `58.56 cm^(2)`.
    B
    `78.56 cm^(2)`.
    C
    `98.56 cm^(2)`.
    D
    `88.56 cm^(2)`.
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