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

State moseleys law, Q. State Moseley's law. The frequency of the spectr...

Q. State Moseley's law. The frequency of the spectral line in the qualities X-ray spectrum is directly proportional to the square of the atomic number (Z) of the element consid

Discuss the carnot cycle of operation, Discuss the Carnot cycle of operatio...

Discuss the Carnot cycle of operation and reduce the expression for efficiency. Carnot engine is works on the principle of Carnot cycle made up of four stages are represented as sh

The Schrodinger Equation, What is the upside down delta in the Schrodinger ...

What is the upside down delta in the Schrodinger Equation?

Properties of bar magnet, (1) Directive properties: When a magnet suspended...

(1) Directive properties: When a magnet suspended freely it remains in the earth's N-S direction (in magnetic meridian). (2) Monopole concept: If a magnet is broken into number

Electric lines of force, Definition: The electric field in a region is show...

Definition: The electric field in a region is shown by continues lines (also known as lines of force). Field line is an imaginary line along which a positive test charge will move

Matter waves (de-broglie waves), It is described by de-Broglie a moving mat...

It is described by de-Broglie a moving material molecule sometimes acts as a wave and sometimes as a particle. The wave associated with moving particle is known as matter w

What is the thermal entry length, Sample Problem: Consider laminar flow thr...

Sample Problem: Consider laminar flow through two infinitely wide parallel plates spaced D apart from one another. What is the thermal entry length?

Equilibrium on an inclined plane, A 250 N crate is sitting on a 30 degree i...

A 250 N crate is sitting on a 30 degree inclined plane. The frictional force is larger than the component of the crate's weight parallel to the inclined plane, so that the crate do

Explain destructive interference, Does destructive interference violate the...

Does destructive interference violate the principle of conservation of energy? Briefly explain.

Explain joule''s law, Explain Joule's Law: "Work done is directly propo...

Explain Joule's Law: "Work done is directly proportional to the heat produced.

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