Ans: The figure of merit of a galvanometer is the quantity of current required to produce a deflection of one division in the galvanometer.
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What is the formula of figure of merit?
We can find the figure of merit of the galvanometer by using the equation, k= E/(R+G)ฮธ.
What is figure of merit example?
The figure of merit (FOM) is determined by the primary characteristic that makes something fit for a specific purpose. For example, a digital camera’s figure of merit is its sensor resolution, while the FOM in a loudspeaker is the frequency response.
What is mean by figure of merit of galvanometer?
It is defined as the current which produces a deflection of one scale division in the galvanometer and is given by. G =ฮธI=N. BAK.
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.
How do you find the figure of merit of a galvanometer?
For determining the figure of merit of the galvanometer the key K2 is opened in the circuit arrangement. By knowing the values of E, R, G and ฮธ the figure of merit of the galvanometer can be calculated. 1. Clean the connecting wires with sand paper and make neat and tight connections as per the circuit diagram (Fig.
What is meant by figure of merit of a receiver?
The figure of merit ‘ฮณ’ is the ratio of output signal to noise ratio to input signal to noise ratio of a receiver system.
What does having merit mean?
: to be worthy of or entitled or liable to : earn. intransitive verb. 1 : deserve. 2 obsolete : to be entitled to reward or honor.
What is sensitivity of galvanometer?
The deflection induced in the coil of the galvanometer per unit passage of electric current through it is known as current sensitivity.
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 a figure of merit in chemistry?
Figures of merit are a way for analytical chemists to characterize a method. The six figures of merit we will use are precision, accuracy, sensitivity, linear dynamic range, detection limit, and selectivity.
What is figure of merits in digital circuits?
The product of the signal propagation delay times the average power dissipation has been used as a figure of merit for digital systems in much the same way as the gain times bandwidth product has been used to evaluate and compare devices intended for linear circuit applications.
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.
How are figure of merit and current sensitivity related?
Figure of merit of a galvanometer is the reciprocal of current sensitivity.
What is the galvanometer constant?
The galvanometer constant of a coil is the strength of the magnetic field produced by a unit current flowing in it at its center. As a result, if a current flows in a coil with a galvanometer constant of G, the field strength at the coil’s center is Gi, and the lines of force are at right angles to the coil.
What is the efficiency of galvanometer?
Considering a galvanometer as an engine for converting electrical energy into potential energy shows that its effective efficiency is about 40 percent that of an ideal engine.
What is the use of galvanometer Mcq?
A moving coil galvanometer is an instrument which is used to measure electric currents. It is a sensitive electromagnetic device, which can measure low currents even of the order of a few microamperes.
What is the figure of merit of the galvanometer if current I produce a deflection ฮธ 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/ฮธ where k is the figure of merit of the galvanometer.
Why is it called half deflection method?
When the key K2 is also closed the galvanometer and shunt resistance will be in and parallel and net resistance will be reduced. This time the deflection shown in the galvanometer will reduce to half. Thus this method is known as the half deflection method.
What is IG in galvanometer?
Ig is calculated using the equation, Ig = nk, where n is the number of divisions on the galvanometer and k is the figure of merit of galvanometer.
What is half deflection?
The half deflection technique is a way of analyzing a cell’s internal resistance to aid in determining a high-value resistance. The deflection of half would be regarded as a value received only from the cell.
Why AM figure of merit is always less than 1?
This is due to the wastage of transmitter power, which results from transmitting the carrier as a component of AM wave. a figure of merit = 1/3.
What is represented by figure of merit Mcq?
Explanation: Figure of merit is a numerical quantity based on the characteristic of system that represents a measure of efficiency or effectiveness. It is defined as the ratio of output signal to noise ratio to input signal to noise ratio.
What is noise and noise factor?
1 Definition of noise factor (noise figure) The noise factor, usually of an amplifier, is defined as the ratio of the signal to noise ratio at the input to the signal to noise ratio at the output of the amplifier stage.
What does merits mean in science?
Scientific merit Scientific merit is considered as a way to examine if our research study represents good science. Therefore, we will need to make sure that any research we are working on, clearly states the research questions and its overall objectives.