मराठी

A Point Charge Q is Placed at Point O as Shown in the Figure. the Potential Difference Va – Vb Positive. is the Charge Q Negative Or Positive?

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प्रश्न

A point charge Q is placed at point O as shown in the figure. The potential difference VA – VB positive. Is the charge Q negative or positive?

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उत्तर

According to the question, VA – VB is positive, which leads to the conclusion that VA > V , since potential inversely proportional to distance from the charge (\[V \propto \frac{1}{r}\]). Thus, charge at O is positive.

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2015-2016 (March) Foreign Set 2

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