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- Dictionarysensitivity/ˌsɛnsɪˈtɪvɪti/
noun
- 1. the quality or condition of being sensitive: "a total lack of common decency and sensitivity" Similar Opposite
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Therefore we write, Sensitivity = dθ/di. If a galvanometer gives a larger deflection for a small current it is a sensitive galvanometer. The current in Moving Coil galvanometer is: I = (C/nBA) × θ. Therefore, θ = (nBA/C) × I. Differentiating on both sides wrt I, we have: dθ/di = (nBA/C). To sum up, the sensitivity of Moving Coil ...
Explain, using a labelled diagram, the principle and working of a moving coil galvanometer. What is the function of (i) uniform radial magnetic field, (ii) soft iron core ? Define the terms (i) current sensitivity and (ii) voltage sensitivity of a galvanometer. Why does increasing the current sensitivity not necessarily increase voltage ...
Dividing (II) by (I)$$\dfrac{S_v}{S_I}=\dfrac{1}{G}\Rightarrow S_V=\dfrac{1}{G}S_I$$ Clearly the voltage sensitivity depends on current sensitivity and the resistance of galvanometer. If we increase current sensitivity then it is not certain that voltage sensitivity will be increased.
Sensitivity of moving coil galvanometer is ' s '. If a shunt of ( 1 8 ) t h of the resistance of galvanometer is connected to moving coil galvanometer, its sensitivity becomes: View Solution
Define the current sensitivity of a galvanometer. Write S.I unit Figure shows two circuits each having a galvanometer and a battery of 3V When the galvanometer in each arrangement do not show any deflection obtain the ratio R 1 / R 2
Define the current sensitivity of a galvanometer. Write its S. I. unit. Figure shows two circuits each having a galvanometer and a battery of 3 V. When the galvanometers in each arrangement do not show any deflection, obtain the ratio R 1 R 2.
Since Voltage sensitivity decreases with increase in resistance of the coil and the effect of an increase in the number of turns is nullified in case of voltage sensitivity so there is no change of voltage sensitivity, whenever there is a change in current sensitivity.
What is the relations between them? That galvanometer is more sensitive, in which a small current when flowing in the coil or small voltage when applied at its ends the necessary deflection is noted. The figure of merit of a galvanometer is the current required to produce a deflection of one division in the galvanometer scale. This is inversely ...
Define the current sensitivity of a galvanometer. Write S.I unit Figure shows two circuits each having a galvanometer and a battery of 3V When the galvanometer in each arrangement do not show any deflection obtain the ratio R 1 / R 2
Verified by Toppr. If dθ is the change in deflection corresponding to the small change dI in the current through a galvanometer, then its current sensitivity is. SI = dθ dI. In moving coil galvanometer, the deflection θ is given by. θ = N AB dC I. or θ = KI. where K = N AB C is a meter constant. Differentiating the above equation with ...
