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Class 12thPhysicsPhysics Current ElectricityOverview

Consider the circuit shown. Galvanometer resistance is 10 Wand current through galvanometer is 3 mA. Find the resistance of shunt.

 

Option 1 - <p><span lang="EN-IN">10<sup>–3</sup>Ω</span></p>
Option 2 - <p><span lang="EN-IN">7.5 × 10<sup>–3</sup>Ω</span></p>
Option 3 - <p><span lang="EN-IN">6.75 × 10–<sup>3</sup></span><span lang="EN-IN">Ω</span><span lang="EN-IN">&nbsp;&nbsp;</span></p>
Option 4 - <p><span lang="EN-IN">3.75 × 10<sup>–3</sup>Ω</span></p>
3 Views|Posted 4 months ago
Asked by Shiksha User
1 Answer
A
4 months ago
Correct Option - 4
Detailed Solution:

Since Gand S are in parallel

-> VG = VS

->3mA * 10 = 8A * RS

->RS = 3.75mW

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