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

Grid resistor, For higher current rating application, resistance wires with...

For higher current rating application, resistance wires with extremely large cross sections are required. The necessary large cross sections are produced in the form of resistance

Centre of the square, Fig- detremines a square loop Made from a uniform wir...

Fig- detremines a square loop Made from a uniform wire. Determine the magnetic field at the centre of the square if a battery is connected among the points A and C.

Modulus of elasticity, (a). Modulus of elasticity and modulus of rigidity a...

(a). Modulus of elasticity and modulus of rigidity are important parameters to measure mechanical properties of materials. With the aid of drawings, explain these parameters and gi

What is centrifugal force, What is Centrifugal Force? Centrifugal force...

What is Centrifugal Force? Centrifugal force is the force that is equivalent in magnitude but opposite in direction to the centripetal force, which is the force directed toward

Show constant moment arm, Q. Show Constant Moment Arm? The simplest ca...

Q. Show Constant Moment Arm? The simplest case is that of a point mass, and the moment of inertia can be immediately written as                                   I = mR 2 ,

Explain electricity, Electricity: The flow of electron is known as elec...

Electricity: The flow of electron is known as electricity.

De - broglie waves theory, Q. Explain the wave nature of matter.   De -...

Q. Explain the wave nature of matter.   De - Broglie Waves Theory According to De - Broglie hypothesis, particles like electron, proton, neutron etc. show wavelike properti

Assignment, to find coefficient of viscosity of a liquid using stok''s law

to find coefficient of viscosity of a liquid using stok''s law

Calculate the maximum kinetic energy of photoelectrons?, Light described at...

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

Experiment of a simple tripod, A simple tripod A useful tripod can be m...

A simple tripod A useful tripod can be made by cutting away the sides of a tin can. It is suitable to make two or three of these to suit dissimilar burners and for use as stand

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