Along, straight wire carries a current of 4.23 a. an electron travels at 47100 m/s parallel to the wire, 61.1 cm from the wire. the permeability of free space is 1.25664 × 10−6 n/a 2 and the charge on an electron is 1.6 × 10−19 c. what force does the magnetic field of the current exert on the moving electron? answer in units of n.
To give a proper solution to this problem we need to apply the concept about Force on electron, which is given by,
= Perpendicular Force to the direction of magnetic field
B = Magnetic field
V = Velocity (Perpendicular also)
We know that B is given by
Where is the permeability constant I is the current and d the distance
Replacing in the Force equation,
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answer; equivalent to a one(1) horsepower motor;