Mathematics · Electric Resistance & Ohm's Law
A wire has a resistance of 10 Ω. If this wire is uniformly stretched to double its original length while keeping its mass and density constant, and connected across the same voltage source, the current in the circuit becomes:
- 1Four times of its original value
- 2One-fourth of its original value✓
- 3Double of its original value
- 4Half of its original value
Correct answer
One-fourth of its original value
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