Physics, asked by jpauljeffrey1, 1 year ago

please answer with explanations ​

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Answered by saounksh
1

ᴀɴsᴡᴇʀ

  • 2) Equivalent resistance is R/2.

ᴇxᴘʟᴀɪɴᴀᴛɪᴏɴ

  • The resistor with resistance 2R has both its ends connected to B. As such both ends will have same electric potential and no current will flow through this resistor.

  • Thus it has no contribution to equivalent resistance and can be removed from the circuit.

  • So, the circuit has two resistors each of resistance R connected in parallel.

\implies \frac{1}{R_{eq}} = \frac{1}{R} + \frac{1}{R}

\implies \frac{1}{R_{eq}} = \frac{2 }{R}

\implies R_{eq}= \frac{R}{2}

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