Mathematics · Electricity
'a' भुजा का एक ठोस घन ρ प्रतिरोधकता (resistivity) वाले पदार्थ से बना है। इस घन के दो विपरीत फलकों (faces) के बीच विद्युत प्रतिरोध क्या होगा?
- 1ρa✓
- 2ρa2
- 32ρa
- 4ρa
सही उत्तर देखें
ρa
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