Electric Forces and Fields

Magnitude of Electric Field


<div class="wp-block-create-block-problemblock">A charged ball of mass m and charge Q is hung from a mass less pendulum.  A uniform electric field along the horizontal causes the pendulum to swing up an angle ##\theta##.  Find the magnitude of the electric field.<br /><img src="/old/images/electricphysics.gif"  alt="physics magnitude of electric field "></div>


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