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Current Electricity question

2000 · Q127
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Current Electricity question

2000 · Q127

NEETPhysicsCurrent ElectricityMCQ+4 / −1
The net resistance of the circuit between A and B is

AIPMT 2000 Physics - Current Electricity Question 45 English
  1. A
    83Ω{8 \over 3}\Omega38​Ω
  2. B
    143Ω{14 \over 3}\Omega314​Ω
  3. C
    163Ω{{16} \over 3}\Omega316​Ω
  4. D
    223Ω{{22} \over 3}\Omega322​Ω
View written solutionFree

Correct answer: B

This is a balanced Wheatstone’s bridge so no current flows through the 7 Ω\Omega Ω resistor.

∴\therefore∴ 1Req=14+3+16+8{1 \over {{R_{eq}}}} = {1 \over {4 + 3}} + {1 \over {6 + 8}}Req​1​=4+31​+6+81​

⇒Req=143Ω\Rightarrow {R_{eq}} = {{14} \over 3}\Omega⇒Req​=314​Ω

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