एक क्षेत्र 'F' संरक्षित कहलायेगा यदि

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UPPSC AE Electrical 29 May 2022 Official Paper I
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  1. ∇.F̅ = 0
  2. ∇.∇F̅ = 0
  3. ∇ × F̅ = 0
  4. उपरोक्त में से कोई नहीं

Answer (Detailed Solution Below)

Option 3 : ∇ × F̅ = 0
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कर्ल:

क्षेत्र  का कर्ल निम्न प्रकार दिया जाता है:

यदि ,  तो क्षेत्र  प्रकृति में संरक्षी या अघूर्णी है।

अपसरण:

क्षेत्र  का अपसरण निम्न प्रकार दिया जाता है:

यदि , तो क्षेत्र  प्रकृति में परिनालिकीय है।

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