2 mA విద్యుత్ ప్రవహించే 2.5 kΩ నిరోధకంలో పొటెన్షియల్ బేధం (Vలో) కనుగొనండి.

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RRB ALP Fitter 23 Jan 2019 Official Paper (Shift 1)
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  1. 5
  2. 0.2
  3. 1.25
  4. 0.8

Answer (Detailed Solution Below)

Option 1 : 5
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భావన :

  • ఓమ్ నియమం: స్థిర ఉష్ణోగ్రత మరియు ఇతర భౌతిక పరిమాణాల వద్ద వాహకం గుండా ప్రవహించే విద్యుత్ ప్రవాహానికి విద్యుత్ పొటెన్షియల్ బేధం అనులోమానుపాతంలో ఉంటుందని ఇది పేర్కొంటుంది.

కాబట్టి V = IR

ఇక్కడ V అనేది సంభావ్య వ్యత్యాసం, I అనేది విద్యుత్ ప్రవాహం మరియు R అనేది నిరోధకం

గణన :

ఇచ్చింది:

నిరోధకం (R) = 2.5 kΩ = 2500 Ω  

ప్రస్తుత (I) = 2 mA = 0.002 A

V = IR

V = 2500 × 0.002

V = 5.0

పొటెన్షియల్ బేధం = 5V.

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