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

Moments, calculating the distance in effective handle.

calculating the distance in effective handle.

Weiss constant, Weiss constant: A characteristic constant based on the...

Weiss constant: A characteristic constant based on the material, utilized in calculating the susceptibility of paramagnetic materials.

Relative veloctiy, The velocity of a motor boat with respect to Still Water...

The velocity of a motor boat with respect to Still Water is 7 m/s and the velocity of water in river is 3 m/s. When the boat starts moving upstream, a float was dropped from it.

Newtons Rings, What will be effect on radius Newton''s rings if air is repl...

What will be effect on radius Newton''s rings if air is replaced by oil between the lens and the glass plate

rigid bodies through finite angles not a vector, Why rotation of rigid bod...

Why rotation of rigid bodies through finite angles not a vector?  Ans) Because it does not obey one of the laws of vector algebra(law of commutativity).

Determine the torque acting on the coil, A coil of area 100 cm 2 having 50...

A coil of area 100 cm 2 having 500 turns carries a current of 1mA. It is suspended in a uniform magnetic field of induction 10 -3 Wbm -2 . Its plane makes an angle of 600 with t

Understand how an endoscopy used in the invasive surgery, Understand how an...

Understand how an Endoscopy used in the invasive surgery. Endoscopy is a minimally invasive diagnostic medical process utilized to assess the interior surfaces of an organ thro

Nicol prism, basic informations about nicol prism

basic informations about nicol prism

Lens, types of lenses and their explanation

types of lenses and their explanation

Determine the current flowing in the conductor, A 25cm long conductor moves...

A 25cm long conductor moves at a uniform speed of 8m/s by a uniform magnetic field of flux density 1.2T.  Verify the current flowing in the conductor when (a) Its ends are o

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