Ammeters,Voltmeters,Ohmmeters: Difference between revisions

Revision as of 23:59, 4 December 2015

This page is created by jlukose6

This page will describe certain tools that are used in measuring various values inside of a circuit. Using these tools can help you calculate current, voltage, power and resistance across various circuits.

Ammeters

What is an Ammeter

An Ammeter is a measuring device used to measure the electric current in a circuit. It can be used in both series and parallel circuits. This is plausible through the very negligible resistance that the Ammeter introduces to the circuit. It allows us to measure the current running through a circuit element very closely. An Ammeter measures current in Amperes(A) named after Andre Marie Ampere.

Connecting Ammeters

To properly use Ammeters, they must be inserted into a circuit in series with the element that you want to measure. You bring the current into the + socket and out of the - socket. If a positive number is read then the conventional current is flowing into the + socket. Therefore, a negative number is read when conventional current flows into the - socket.

Ammeter in Parallel?

One rule of Ammeters is to have a low resistance so it doesn't alter the current through the circuit and the element that is being measured. So,what happens if you connect the Ammeter in parallel?

This would create an extremely low resistance path("short circuit"). All of the current would then pass through the Ammeter and the reading would be a measurement of the maximum current that the batteries(voltage source) can provide.

Voltmeters

This topic is dedicated to Voltmeters which are used to measure potential difference across a circuit and its various components.

Ohmmeters

Examples

Be sure to show all steps in your solution and include diagrams whenever possible

Simple

Middling

Difficult

Connectedness

How is it connected to your major?

I am a Computer Engineering(CompE)(both my major and something that interests me) student here at Georgia Institute of Technology. This is a topic that is extremely important to the world of ECE. We use these measuring devices in numerous real-life applications and building of circuits. They are a vital part to both teaching and understanding how a certain circuit performs.

2Is there an interesting industrial application?

Nowadays, most of these calculations are done computationally so there is no need for these physical measuring devices. However, some places still use these measuring devices in day to day life.

History

Put this idea in historical context. Give the reader the Who, What, When, Where, and Why.

Revision as of 23:59, 4 December 2015 (view source) Jlukose6 (talk \| contribs) (→‎Connectedness) ← Older edit		Revision as of 23:59, 4 December 2015 (view source) Jlukose6 (talk \| contribs) (→‎Connectedness) Newer edit →
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	#~~#Is~~ there an interesting industrial application?		#2Is there an interesting industrial application?

	Nowadays, most of these calculations are done computationally so there is no need for these physical measuring devices. However, some places still use these measuring devices in day to day life.		Nowadays, most of these calculations are done computationally so there is no need for these physical measuring devices. However, some places still use these measuring devices in day to day life.