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

Light.., why is the colour of sky blue

why is the colour of sky blue

State gauss theorem in electrostatics, State Gauss' theorem in electrostati...

State Gauss' theorem in electrostatics. Using this theorem, derive the expression for the electric field intensity at any point outside a uniformly charged thin spherical shell.

Determine state of calcium atom, Ca has atomic no. 20 and atomic weight 40....

Ca has atomic no. 20 and atomic weight 40. Which of the following statements is not correct about Ca atom: (1)The number of electrons is same as the number of neutrons   (2)

Voltage, Voltage: Voltage is the electrical equivalent of mechanical po...

Voltage: Voltage is the electrical equivalent of mechanical potential. If a person drops a rock from the first storey of a building, the velocity it will reach when dropped wi

The force is in newton, The force is in Newton The buoyant (upward) for...

The force is in Newton The buoyant (upward) force exerted by water on a submerged object is given by the formula F= ?Vg, where ? is the density of water (1.0 x 10 3 kg/m 3 ),

Explain electrostatic induction, Electrostatic Induction: Electrostatic...

Electrostatic Induction: Electrostatic Induction is the process in which a charged object charges another neutral object without touching it.

Find the normal force, The mass of an automobile is 1140kg, and the distanc...

The mass of an automobile is 1140kg, and the distance between its front and rear axles is2.48 m. The center of gravity of theca is between the front and rear tires, and the horizon

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

Resistances of resistance boxes, Are made up of alloys (manganin, constanta...

Are made up of alloys (manganin, constantan or nichrome) these materials have moderate Resistivity which is practically independent of temperature so that the specified value of re

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