Why Should an Ammeter Be Connected in Series and Not Parallel?

Question

I have a question about connecting an ammeter. Why should you connect in series in a circuit?
What I mean here is the principle of operation, I know that if we connect it in parallel it will burn, but why?

diantus · Accepted Answer

An ammeter is used to measure the current consumed by any current receiver - a light bulb, a motor, a radio, etc., so it is connected in series with this receiver. In order for the error of this measurement to be as small as possible, its internal resistance must be as low as possible - close to zero Ω.
Connecting such a low resistance in parallel to the voltage source causes a short circuit and burns out the ammeter itself or the wires connected to it.

Anonymous · Accepted Answer

It will burn, perhaps with a great bang. In this system, a resistor is also needed to limit the current flowing through the diode. It would also be useful to have a rectifier diode or a bridge so that the current flows in one direction.
Lower the voltage to 13V and replace the diode with a car bulb and there will be no surprises.

Ricoh_220 · Answer

The matter is simple, you measure the voltage drop on the shunt (a resistor with minimum resistance), there is a potential difference indicated by the meter. Search https://pl.farnell.com/ohms-law-calculator?CMP=KNC-GPL-GEN-KWL&mckv=_dc |pcrid|241172065677|&gclid=CjwKCAiA9qHhBRB2EiwA7poaeOEXxg3PMgdz7vC48lU1hV8bc7oSHbHH-Tja_a0B_1yKWBgbzNrhkBoC-WwQAvD_BwE
I refer you to the literature, e.g. practical electronics. If you have any questions, write me a PM, there`s no point in fooling around.

Ricoh_220 · Answer

Buddy, is this entry to gain points?

mieszaczwcz · Answer

The ammeter has an internal resistance ranging from several mΩ to Ω, so you can make parallel measurements, because it is actually mV, and you want to measure the current flowing through a given element. Therefore, the lower the internal resistance. the ammeter is better, unlike V measurements - the higher the internal resistance, the better because it does not burden the source

Ricoh_220 · Answer

Don`t explain this to me as it happened to me, because I know it. I`m not 15 years old.

mieszaczwcz · Answer

RICOH... for the author, your translation is a sentence which is written too much, but for the author it may be difficult to understand, judging by the level of the advanced question, a shunt is... what is it, comes with little knowledge and basically you have to answer the question from His level. The young man wants to educate himself!

Added after 7 [minutes]:

regarding #5 (delay, we wrote it together It wasn`t for you) I didn`t explain it to YOU because as I understand it. You`re HAPPY but you somehow treat people in advance.

Maffel · Answer

Okay, so if we connect a diode and an ammeter in this way, why won`t it burn out?

retrofood · Answer

And if you have a hose with water, how will you connect a water meter to measure the volume of water flowing? The same applies to the dispenser counter at a gas station. Between the pump and the hose. Therefore, the ammeter must be placed along the power supply - receiver route. You don`t see any analogy with the so-called life?

Why Should an Ammeter Be Connected in Series and Not Parallel?

Post #1

Post #2

Post #3

Post #4

Post #5

Post #6

Post #7

Post #8

Post #9

Post #10

Didn't find an answer? Ask Artificial Intelligence

Topic summary