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The Maxwell’s bridge shown in the figure given below is at balance. The parameters of the inductive coil are
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R = R2R3 , L = C4R2R3 R4 -
L = R2R3 , R = C4R2R3 R4 -
R = R4 , L = 1 R4 (C4R2R3) -
L = R4 , R = 1 R2R3 (C4R2R3)
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Correct Option: A
For balanced bridge,
| = | |||
| Z2 | Z4 |
∴ ωZ1Z4 = Z2Z3
| (R + jωL). | = R2R3 | |
| R4 - (j/ωC4) |
| - | + | = | { R4 - | } | ||||
| ωC4 | C4 | R4 | ωC4 |
Comparing, we get
| R4 = L/C4 | ||
| R4 |
⇒ L = R2R3C4
| and | = | . | |||
| ωC4 | R4 | ωC4 |
| ⇒ R = | ||
| R4 |
