दो बिंदु आवेश \( q_{\mathrm{A}}=3 \mu \mathrm{C} \) तथा \( \mathrm{q}_{\mathrm{B}}=-3 \mu \mathr...

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दो बिंदु आवेश \( q_{\mathrm{A}}=3 \mu \mathrm{C} \) तथा \( \mathrm{q}_{\mathrm{B}}=-3 \mu \mathrm{C} \) निर्वात में एक-दूसरे से \( 20 \mathrm{~cm} \) दूरी पर स्थित हैं।
(a) दोनों आवेशों को मिलाने वाली रेखा \( \mathrm{AB} \) के मध्य बिंदु \( \mathrm{O} \) पर विद्युत क्षेत्र कितना है?
(b) यदि \( 1.5 \times 10^{-9} \mathrm{C} \) परिमाण का कोई ऋणात्मक परीक्षण आवेश इस बिंदु पर रखा जाए तो यह परीक्षण आवेश कितने बल का अनुभव करेगा?
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