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Science
•
10th Grade
•
Hard
RUBY KUMARI
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By RUBY KUMARI
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विद्युत धारा (Electric Current)
परिभाषा : किसी अनुप्रस्थ काट से प्रति एकांक समय में प्रवाहित होने वाले आवेश के मान को विद्युत धारा कहलाती है , माना Q आवेश अनुप्रस्थ काट से t समय में गुजरता है तो परिभाषा से
विद्युत धारा = Q /t
चूँकि हम यहाँ आवेश प्रवाह की बात कर रहे है अतः आवेश धनात्मक तथा ऋणात्मक आवेशित होगा ,
अतः हम कह सकते है की धारा के प्रवाह में धनात्मक तथा ऋणात्मक आवेश योगदान करते है।
By RUBY KUMARI
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