Question
Download Solution PDFIf current is doubled and potential difference is reduced to half, then _________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is Option 1.
Key Points
- According to ohm's law Current (I) = Potential difference (V) / Resistance(R)
- If the potential difference is maintained constant and the resistance is changed - Current (I) is inversely proportinal to the reisistance (R) ⇒ I ∝ 1/R
- So If current is doubled and potential difference is reduced to half, then resistance will become one-fourth.
Additional Information
- Resistance:
- It is defined as the hurdles in the path of flow of current.
- The SI unit of resistance is the ohm.
- It is denoted by the symbol Ω.
- It depends on the material of the conductor and the dimensions of the conductor.
- In other words, we can say it is the ratio of voltage to the current.
- R= (rho×length)/area
- Note: rho=Resistivity
Last updated on Jul 17, 2025
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