Mathematics · Current Electricity
दो तार, A और B, एक ही पदार्थ के बने हैं और समान तापमान पर रखे गए हैं। तार B की लंबाई तार A से दोगुनी है और इसका व्यास भी तार A से दोगुना है। यदि तार A का विद्युत प्रतिरोध R है, तो तार B का विद्युत प्रतिरोध कितना होगा?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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R 2
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