A bridge circuit consist ot two fixed resistance and two strain gauges of each value of 100 - If the gauge factor of 2 the strain of 200 - strain- If the supplied battery current of 100 mA- Then the sensitivity in volt per unit strain is

Supplied voltage e_i=100× 10^ 3× 100=10 V Output voltage e_o=Gfε e_i2=2× 200× 10^ 6× 102 e_0=2 mV Sensitivity of the bridge ( Vstrain )=2× 10^ 3200× 10^ 6 ...

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Standard XII

Physics

Capacitor in an AC Circuit

A bridge circ...

Question

A bridge circuit consist ot two fixed resistance and two strain gauges of each value of $100 Ω$ . If the gauge factor of $2$ & the strain of $200 μ$ strain. If the supplied battery current of $100 m A$ . Then the sensitivity in volt per unit strain is
10

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Solution

The correct option is A 10

$Supplied voltage e_{i} = 100 \times 10^{- 3} \times 100 = 10 V$

$Output voltage e_{o} = \frac{G f ε e_{i}}{2} = \frac{2 \times 200 \times 10^{- 6} \times 10}{2}$

$e_{0} = 2 m V$

$Sensitivity of the bridge (\frac{V}{strain}) = \frac{2 \times 10^{- 3}}{200 \times 10^{- 6}}$

$S = 10 (\frac{V}{strain})$

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A bridge circuit consist ot two fixed resistance and two strain gauges of each value of 100 Ω. If the gauge factor of 2 & the strain of 200 μ strain. If the supplied battery current of 100 mA. Then the sensitivity in volt per unit strain is10

The correct option is A 10 Supplied voltage ei=100×10−3×100 =10 V Output voltage eo=Gfεei2=2×200×10−6×102 e0=2 mV Sensitivity of the bridge (Vstrain)=2×10−3200×10−6 S=10(Vstrain)

A bridge circuit consist ot two fixed resistance and two strain gauges of each value of $100 Ω$ . If the gauge factor of $2$ & the strain of $200 μ$ strain. If the supplied battery current of $100 m A$ . Then the sensitivity in volt per unit strain is
10