Voltmeters, Physics

Assignment Help:

Voltmeters:

Voltmeters are used to measure emf's and more commonly potential differences. The two probes of the meter are therefore connected to the two points between which the potential difference is required.

66_voltmeter.png

If the potential at A with respect to B is required, the red lead is connected to point A, the black lead point B.
If the potential at B with respect to A is required, the red lead is connected to point B, the black lead point A.
If the potential between a point and Earth or ground is required. The red lead is connected to the point and the black lead is connected to ground or Earth.

 


Related Discussions:- Voltmeters

Unit vector which is perpendicular to the resultant, Unit vector which is p...

Unit vector which is perpendicular to the resultant of 2i+3j+5k and -i+2j+7k ; and passes by (1,2,4)

Determine number of neutrons in nucleus of the atom, An atom has 26 electro...

An atom has 26 electrons and its atomic weight is 56. The number of neutrons in the nucleus of the atom will be : (1) 26      (2) 30        (3) 36                     (

Specific heats of gases, Specific heat of a gas is numerically equivalent t...

Specific heat of a gas is numerically equivalent to the amount of heat essential to raise the temperature of unit mass of gas by 1 0 C. In order to raise the temperature of unit ma

Factors affecting electrical resistivity, TEMPERATURE: When the conduct...

TEMPERATURE: When the conduction electrons are only scattered by thermal vibrations of thermal ions, then τ in the mobility expression refers to the mean time between scatterin

Surface polarization charge, An atom is said to be polarized if it possess...

An atom is said to be polarized if it possesses and effective dipole moment, that is, if there is a separation between the centres of negative and positive charge distribution. It

Determine the minimum thickness of the quarter wave plate, A plane pol...

A plane polarized monochromatic light of wave length 5893Å is incident perpendicularly on a quarter wave plate to produce elliptically polarized light. If the refrac

Vectors, if A=[30.1, 21.4 degrees] and B= [25, 40 degrees] what is the magn...

if A=[30.1, 21.4 degrees] and B= [25, 40 degrees] what is the magnitude of the sum of these two vectors

Thermoelectric thermometer, the use and working principle of thermoelectric...

the use and working principle of thermoelectric thermometer

Spectrum and electromagnetic radiations, Spectrum and electromagnetic radia...

Spectrum and electromagnetic radiations: What is a spectrum? Ans: A spectrum is a group of wave lengths or frequencies. What  are the electromagnetic radiations? Ans:

Dimensional analysis, can you please give me a step wise answer for finding...

can you please give me a step wise answer for finding the dimension of impulse

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd