जर प्रति सेकंद 200 ज्युल उष्णता निर्माण होत असेल, तर 2 ओहमच्या रोधामधील विभवांतर ______ असेल.

This question was previously asked in
RRB Group D 27 Sept 2022 Shift 3 Official Paper
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  1. 10 व्होल्ट
  2. 80 व्होल्ट
  3. 40 व्होल्ट
  4. 20 व्होल्ट

Answer (Detailed Solution Below)

Option 4 : 20 व्होल्ट
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दिलेल्याप्रमाणे:

उत्पादित उष्णता = 200 J

रोध = 2 ओहम.

वापरलेले सूत्र:

उत्पादित उष्णता प्रमाण, \(H=\frac{V^2t}{R}\)

[जेथे V हे उत्पादित विद्युतदाबाचे प्रमाण आहे; t हा आवश्यक वेळ आहे; R हा रोध आहे]

गणना:

\(200=\frac{\mathrm{V}^2 \times 1}{2}\\ \Rightarrow \mathrm{V}^2=400 \\\Rightarrow \mathrm{V}=20 \mathrm{v} \)

म्हणून, योग्य उत्तर 20 व्होल्ट आहे.

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