Digital metimeter , Physics

Digital multimeters:

Digital multimeters offer a number of significant advantages when compared with their more humble analogue counterparts.  The display fitted to a digital multimeter usually consists of a 3½ digit seven-segment display - the '½' simply indicates that the first digit is either blank (zero) or 1.  Consequently, the maximum indication on the 2V range will be 1.999V and this shows that the instrument is capable of offering a resolution of 1mV on the 2V range.  The resolution obtained from a comparable analogue meter would be of the order of 50mV, or so, and thus the digital instrument provides a resolution which is many times greater than its analogue counterpart.

The controls and display provided by a simple digital multimeter are shown in the diagram below.  The mode switch and range selector allows you to select from a total of twenty ranges and eight measurement functions.  These functions are:

DC voltage (DC, V)                                DC current (DC, A)

AC voltage (AC, V)                                AC current (AC, A)

Resistance (OHM)                                 Capacitance (CAP)

Continuity test (buzzer)                        Transistor current gain (hFE)

 

105_digital mutimeter.png

Posted Date: 9/13/2012 2:51:59 AM | Location : United States







Related Discussions:- Digital metimeter , Assignment Help, Ask Question on Digital metimeter , Get Answer, Expert's Help, Digital metimeter Discussions

Write discussion on Digital metimeter
Your posts are moderated
Related Questions
what will happen if gravity becomes zero?is it possible in earth?

Describe power of a lens. Write its SI unit. What do you mean by linear magnification produced by a lens in a direction perpendicular to its axis? Write down the mathematical expre

Q. What are the limitations of electron microscope? An electron microscope is operated merely in high vacuum. This prohibits the utilize of the microscope to study living organ

FUNCTIONS OF NICOL PRISM

what is newton law of gravitation?

Light described at a place by the equation E=100[sin(5*10^15)t + sin(8*10^15)t] falls on the metal surface having work function 2eV.calculate the maximum kinetic energy of photoel

Mosley studied the characteristic X-ray spectrum of a number of a heavy elements and concluded that the spectra of dissimilar elements are very same and with enhancing atomic value

An elementary particle is: (1)An element present in a compound      (2)An atom present in an element   (3)A sub-atomic particle (4)A fragment of an atom Ans: (3)A s

The nature of anode rays depends upon: (1) Nature of electrode (2) Nature of residual gas (3) Nature of discharge tube (4) All the above Ans:(2) Nature of residual

what happened if we connect ammeter parallel to the resistor, whose current we wnt to find ,rather than in series?