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

Capacitors in parallel, Capacitors in parallel: Three capacitors are co...

Capacitors in parallel: Three capacitors are connected in parallel. If on closing the switch S a current I flows in the circuit, then from Kirchoff's first law:

Friction, pedaling cycle is less friction or more

pedaling cycle is less friction or more

What will be effect on newtons rings, What will be effect on Newton's rings...

What will be effect on Newton's rings if: (a) A little oil (μ=1.65) is introduced between the lens (μ=1.5) and the glass plate (μ=1.75) (b) A plane mirror is placed instead o

acceleration, How to find acceleration from succesive speed

How to find acceleration from succesive speed?

Law of conservation in nuclear reactions, (i) Conservation of charge number...

(i) Conservation of charge number and mass number : In the given nuclear reaction Mass number (A) → Before the reaction                After the reaction

Explain inertia, Inertia: the resistance an object has to a alter in its s...

Inertia: the resistance an object has to a alter in its state of motion. Newton's first law of motion declares that force is NOT required to keep an object in motion. Slide

Resolution of forces by calculation, Resolution of Forces by Calculation: ...

Resolution of Forces by Calculation: One vector was resolved into two mutually perpendicular components. So if there are several vectors each can be resolved into two

Fund physics, A high-performance dragster with a mass of m = 1333 kg can ac...

A high-performance dragster with a mass of m = 1333 kg can accelerate at a rate of a = 23.5 m/s2. Write an expression for the magnitude of the net force, FNET, that propels the dr

The medium is air, Determine the inductance of a solenoid of 2000 turns rou...

Determine the inductance of a solenoid of 2000 turns round uniformly over a length of 50 cm on a cylindrical paper tube 4 cm in diameter. The medium is air.

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