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यदि किसी परिपथ में परिवर्तन धारा (varying current ) I (t ) समय के फलन के रूप में समीकरण `I(t)=2At-3Bt^(2)` से व्यक्त हो, जहाँ A तथा B उचर है, तब
A. `t=0` पर धारा शून्य है ।
B. `t=(2A)/(3B)` पर धारा शून्य है ।
C. `t=0` से `t=T` के अंतराल में प्रवाहित नेट आवेश `=AT^(2)-BT^(3)`
D. `t=(A)/(3B)` पर धारा का मान महत्तम है।

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