Ammeters, Physics

Assignment Help:

Ammeters :

Ammeters are used to measure current flow, as such they need to be inserted in series with the circuit under test so that the current to be measured flows through the meter. This means the circuit must be broken.

1272_ammeter.png

To connect an ammeter, the power must be switched off. The circuit is broken at the point where the current is to be measured. The meter is then inserted into the circuit in such a way that, 'conventional current' flows into the red lead and out of the black lead. Once the meter is connected, circuit power is restored and the measurement taken.

To disconnect the meter, the circuit power must again be switched off. Once the meter is removed from the circuit, the circuit must be reconnected.

 


Related Discussions:- Ammeters

Cube of copper , Calculate how much heat energy is required to raise the te...

Calculate how much heat energy is required to raise the temperature of a cube of copper of side 2cm. from 300 to 320k. given: density=8933kg/m cube , atomic weight=63.55, cp=24j/k/

What is the strength of the magnetic field, A proton with a velocity of 3.9...

A proton with a velocity of 3.98 x 10 4 m/s perpendicular to the direction of a magnetic field follows a circular path with a diameter of 4.12 cm. If the mass of a proton is 1.

What is the classification of thermodynamic system, i. Open System - Here t...

i. Open System - Here the system boundary is like energy and matter can enter or leave the system freely. Infect the system boundary here is imaginary. ii.Closed System - Here t

How do you calculate tensile strength, How do you calculate tensile strengt...

How do you calculate tensile strength? Tensile strength isn't really measured; it's calculated. It is explained as the point at which a sample of material fails when subjected

State polarization of the incident light, The light passing through a quart...

The light passing through a quarter wave plate is analysed by a rotating Nicol prism. It is get that the intensity of the emergent light beam from the rotating Nicol prism becomes

Vector quantity, example of problem solution of vector quantity

example of problem solution of vector quantity

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