एक मीटर के चल कुंडल में 100 घुमाव और क्रमशः 10 mm और 20 mm की लंबाई और गहराई होती हैं। यह 200 mT की एकसमान रेडियल अभिवाह घनत्व में स्थित है। कुंडल 50 mA की धारा का वहन करता है। कुंडल पर बलाघूर्ण क्या है?

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ISRO (VSSC) Technical Assistant Electrical 2017 Official Paper
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  1. 200 μN – m
  2. 100 μN – m
  3. 1000 μN – m
  4. 1 μN – m

Answer (Detailed Solution Below)

Option 1 : 200 μN – m
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Detailed Solution

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धारणा:

PMMC मीटर में विक्षेपण बलाघूर्ण निम्न द्वारा दिया जाता है,

\({T_d} = BINA\)

B चुंबकीय अभिवाह घनत्व है

I धारा है

N घुमावों की संख्या है

A अनुप्रस्थ काट का क्षेत्र है

गणना:

\({T_d} = 200 \times {10^{ - 3}} \times 100 \times 10 \times {10^{ - 3}} \times 20 \times {10^{ - 3}} \times 50 \times {10^{ - 3}}\)

\({T_d} = 200\;\mu \;N - m\)

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