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`(5hati+10hatj)` वोल्ट/मीटर के एक समान वैधुत क्षेत्र में `0.2hatj" m"^(2)` क्षेत्रफल का पृष्ठ रखा है। पृष्ठ से निर्गत वैधुत फ्लक्स की गणना कीजिए।

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निर्गत वैधुत फ्लक्स,
`phi_(E)=vecE*vecS`
प्रशानुसार, `vecE=(5hati+10hatj)` न्यूटन/कुलोम
`vecS=0.2hatj" m"^(2)`
`thereforephi_(E)=(5hati+10hatj)*(0.2hatj)`
`=5xx0+10xx0.2`
`=0+2=2""न्यूटन-मीटर"^(2)`/कुलोम

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