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Magnetic Field Due to a Circular Ring on the Axis

Two point cha...

Question

Two point charges $q_{1} = 2 μ C$ and $q_{2} = 1 μ C$ are placed at distances b = 1 cm and a = 2 cm from the origin of the y and x axes as shown in figure. The electric field vector at point P(a, b) will subtend an angle $θ$ with the x-axis given by $t a n θ = K$ . Find value of K.___

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Solution

$E α \frac{q}{r^{2}}$

$t a n θ = \frac{E_{0}}{E_{0} / 2} = 2$

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