What is the figure of merit of galvanometer?
Ans: The figure of merit of a galvanometer is the quantity of current required to produce a deflection of one division in the galvanometer. It has a unit ampere per division and it is represented by K.
What is meant by the figure of merit of a galvanometer Mcq?
The figure of merit of a galvanometer can be defined as a current required to produce unit deflection in the galvanometer scale. The figure of merit is denoted by the symbol k.
What is the figure of merit of the galvanometer if current I produce a deflection θ in it?
Correct option bExplanation:The figure of merit of a galvanometer is the current required to produce unit deflection in the galvanometer. Mathematically K = I/θ where k is the figure of merit of the galvanometer.
How can we increase the figure of merit of galvanometer?
- Obtain the expressions for sensitivity and figure of merit of galvanometer giving its principle.
- In order to increase the sensitivity of a moving coil galvanometer, one should decrease.
- The current sensitivity of a moving coil galvanometer increases by 20% when its resistance is doubled.
What is the principle of figure of merit?
The deflection is proportional to the current passed through it. Its working is based on the principle that a coil placed in a uniform magnetic field experiences a torque when an electric current is set up in it. The deflection of the coil is determined by a pointer attached to it, moving on the scale.
How is figure of merit calculated?
A figure of merit is an estimate of the predictive power of a clustering algorithm. It is computed by removing each sample in turn from the data set, clustering genes based on the remaining data, and calculating the fit of the withheld sample to the clustering pattern obtained from the other samples.
What do you mean by figure of merit?
A figure of merit is a quantity used to characterize the performance of a device, system or method, relative to its alternatives. In engineering, figures of merit are often defined for particular materials or devices in order to determine their relative utility for an application.
What is meant by the figure of merit of a galvanometer immersive reader?
Solution : Figure of merit of galvanometer is defined as the amount of current which produces one scale deflection in the galvanometer. Answer.
What is formula of figure of merit?
We can find the figure of merit of the galvanometer by using the equation, k= E/(R+G)θ.
What is the formula of galvanometer?
A galvanometer is a sensitive device which can detect the presence of very small current in a circuit of the order of 100 mA. For measuring current of the order of an ampere, a low resistance called shunt resistance S is connected in parallel across the galvanometer having resistance G. I = n N . 1.
How do I make a figure of merit?
The process is a nine-step procedure as follows:
- Definition of New Measure (FOM)
- Why Selected.
- Survey Customers for Needs and Expectations.
- Brainstorm factors.
- Sort ideas into groups.
- Create group header definitions.
- Prioritize groups.
- Construct Factor Weighting Value Tables:
On what factors does figure of merit depend?
1) on the couple per request of the phosphor bronze spring. 2) area of the coil. 3) number of turns in the coil and 4) magnetic field.
What is the use of figure of merit?
What is figure of merit of vibration?
The figures of merit are some of the best known gear condition indices. The various figures of merit, including FM0 and FM4 and the indices NA4 and NB4, were designed to detect certain kinds of gear faults from the vibration of a gear. ( All of these are the fourth kind except FM0 which belongs to the first kind.)
What is first figure of merit?
1 Introduction. Figures of merit are numerical parameters, usually employed for comparing analytical methods in terms of predictive ability and detection capabilities. The estimation of analytical figures of merit for calibrations based on first- and higher-order data has become an active research field in recent years …
What is the use of galvanometer?
A galvanometer acts as an actuator in response to electrical current flowing through a coil in a continuous magnetic field by generating a rotary deflection of a pointer. A galvanometer is a device (instrument) used in a circuit to detect weak electrical voltages and currents.
What is galvanometer unit?
A galvanometer is a device that is used to detect small electric current or measure its magnitude. The current and its intensity is usually indicated by a magnetic needle’s movement or that of a coil in a magnetic field that is an important part of a galvanometer.
What is galvanometer with diagram?
Basically, a galvanometer includes a needle, connected to a coil so that the coil can move freely in a magnetic field. This field can be created through one or more permanent magnet poles.
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Difference between Galvanometer and Ammeter.
| Galvanometer | Ammeter |
|---|---|
| It is considered an actuator | Ammeter is also known as ampere meter |
On what factors does figure of merit of galvanometer depends?
How is merit figure calculated?
What is called figure of merit?
The figure of merit is defined as the ratio of the desired energy gain to the energy that is input, i.e., the thermal efficiency η equals the ratio of the net work output to the heat added at high temperature.
What means figure of merit?
What is the unit of galvanometer?
The SI unit of current sensitivity of galvanometer is division/ampere (or) radian/ampere.
Why is galvanometer used?
galvanometer, instrument for measuring a small electrical current or a function of the current by deflection of a moving coil.
What is working principle of galvanometer?
A moving coil galvanometer works on the principle that a current-carrying coil placed in a magnetic field, experiences a torque. The coil springs along with the radial field ensure the deflection to be proportional to the strength of the current.