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

Define cathode rays, Cathode rays, discovered by Sir Willium Crooke are the...

Cathode rays, discovered by Sir Willium Crooke are the stream of electrons. They may be given by using a discharge tube containing gas at a low pressure of the order of 10-2 mm of

Determine the change in entropy - temperature, Determine the change in entr...

Determine the change in entropy when 2 kg of a gas at 277 K is heated in a closed, rigid container to a temperature of 368 K. Take the specific heat at constant volume to be 1.42 K

Einstein''s Theory of Relativity, According to Einstein''s Theory of Relati...

According to Einstein''s Theory of Relativity, would time be able to be expressed as a binary system, with a + 1 as yes, a - 1 as a no, and a 0 as an unanswered question?

Determine the maximum height the pinball rolls, Let's say I have a pinball ...

Let's say I have a pinball (solid sphere) with a given mass and radius, and it is held back at a certain distance from equilibrium on a spring. The spring constant k is given, and

#biot''s polariscope., Ask question #whether s component or p component pre...

Ask question #whether s component or p component present in the reflected light of Biot''s polariscope# Minimum 100 words accepted#

Mechanics, components of force in two given direction

components of force in two given direction

What is group velocity, The velocity with which the group of waves travels ...

The velocity with which the group of waves travels is called as group velocity or the velocity with which a ray packet goes is called as group velocity

Avogadro constant, Avogadro constant; L; NA (Count A. Avogadro; 1811) T...

Avogadro constant; L; NA (Count A. Avogadro; 1811) The number of items in a sample substance is equivalent to the number of atoms or molecules in a sample of ideal gas that is

Fire accident in an industry?, If there is a fire accident in an industry, ...

If there is a fire accident in an industry, what  a safety enginner  will do? Ans) Normal 0 false false false EN-IN X-NONE X-NONE

Two simple harmonic motions have the same periodic time, When the two simpl...

When the two simple harmonic motions have the same periodic time but different amplitude and a phase dissimilarity = ∏/2: The resultant curve may be attained graphically as abov

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