Question
Download Solution PDFIn the circuit given below the current across the resistance 2 Ω is______
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT
- Ohm’s law: If the physical circumstances of the conductor (length, temperature, mechanical strain etc.) remain constant, then the potential across the conductor is directly proportional to the current flowing through it i.e. V ∝ i
- V = R i [ R = proportionality constant = resistance of substance, V = potential difference across it, i = current flowing through it.]
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Current always flows through the resistance having minimum value.
EXPLANATION
In the given circuit,
The extra wire shorts the circuit means all the current will flow through it.
Because current will flow where resistance is minimum, here the short wire provide zero resistance. So, all current pass through it.
Hence, the current in wire with 2 Ω resistance is zero.
∴ Option 3 is correct
Last updated on Apr 16, 2025
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