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

What are electromagnetic waves, Q. What are electromagnetic waves? As-...

Q. What are electromagnetic waves? As-per to Maxwell a speed up charge is a source of electromagnetic radiation. In an electromagnetic wave electric as well as magnetic field

Define about the modified joule-thomson, Define about the Modified Joule-Th...

Define about the Modified Joule-Thomson? Container A of variable volume V controlled by a frictionless piston immersed in a bath at temperature T.  This container is connected

Explain elastic collision, ELASTIC COLLISION:  "The collision in which ...

ELASTIC COLLISION:  "The collision in which both linear momentum and K.E are conserved is said to be elastic collision".                  OR "In the ideal case when no K

Optics, Construction and working of michelson interferometer,.how will you ...

Construction and working of michelson interferometer,.how will you use it to measure the wavelength of a monochromatic light.

Explain galvanometer, Galvanometer: 1. An electromechanical instrument,...

Galvanometer: 1. An electromechanical instrument, which is used to detect the presence of current in a circuit is known as galvanometer. 2. The major parts of a galvanomete

ELECTRIC FIELD, ELECTRIC FIELD ABOUT CYLINDERICAL SHELL OF CURVED SU...

ELECTRIC FIELD ABOUT CYLINDERICAL SHELL OF CURVED SURFACE

Describe the slope of the solid-liquid phase , A solid substance has a mola...

A solid substance has a molar volume which is  smaller than that of its liquid phase. Which of the following statements regarding the solid-liquid phase transition is/are true?

Image formation for concave mirrors - case a, Image Formation for Concave M...

Image Formation for Concave Mirrors - Case A To look an object within any type of mirror, a person must sight along a line at the image of the object. Whole persons capable of

Draw the final image formed by two lenses, Draw the final image formed by t...

Draw the final image formed by two lenses: An optical imaging system consists of two positive lenses (L1 and L2). L1 has a focal length f 1 = 10 cm, and L2 has a focal length

Free electron theory and band theory of solids, Q. What is the dissimilarit...

Q. What is the dissimilarity between Free Electron Theory and Band Theory of solids? Answer:- The Free Electron Theory This theory notifies that metals conduct electric

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