Question
Download Solution PDFप्रतिरोधक 25 kΩ के एक तार से प्रवाहित होने वाली धारा को (mA में) ज्ञात कीजिए, जब 12.5 V का एक विभवांतर इसके सिरों पर लगाया जाता है।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFअवधारणा:
- ओम का नियम: नियत तापमान पर, धारा ले जाने वाले तार का विभव अंतर इसके माध्यम से प्रवाहित होने वाली धारा के समानुपाती होता है।
अर्थात V = IR
जहां V = विभव अंतर, R = प्रतिरोध और I = धारा
व्याख्या:
दिया गया है,
प्रतिरोध (R) = 25 kΩ = 25 × 103Ω
विभवांतर (V) = 12.5 V
ओम के नियम का उपयोग करने पर,
\(V=IR\)
I=\(V\over R\)
उपरोक्त मानों को रखने पर,:
I =\(12.5\over25\times10^3\)\(=0.5\times10^{(-3)} A\)
धारा (I) = 0.5 mA
- तार के माध्यम से बहने वाली विद्युत धारा 0.5 mA है। तो विकल्प 1 सही है।
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