Setting Up Basic Circuits with a Multimeter

  • Thread starter Jazmin
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In summary, the speaker is a college student studying forensic science who has never been taught physics before. They are struggling with a physics assignment and feel their teacher is not understanding that they have no prior knowledge of the subject. They are seeking advice and resources on how to set up basic circuits and take correct readings. Another person suggests using a book on basic electricity or the "Cartoon Guide to Physics" for a better understanding of the subject.
  • #1
Jazmin
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Ok.. well I am at college and i do Forensic Science.. i have never been taught any physics.. and as I've started college one of the subjects in my course is Physics.. and i passed the first assignment and i can't pass the "how to set up basic circuits test" ... my teacher isn't very good.. he just shouts at me for not knowing how to do it.. he doesn't understand I've never done any of this before and the others have :(

I need to set up basic circuits and get correct readings using a multimetre and show them in pictures... Ammetre and Volts. I just don't get it.. anyone any tips?! or anything?!

Thankyou!
 
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  • #2
Try a book on basic electricity...it's simple once you get some basics...

A voltage reading is taken by placing the meter on a voltage scale and the meter probes across the item to be measured...a voltmeter is connected in parallel.

For current readings, which measures the passage of electrons, that is current flow, the meter must be set on amps and the meter probes inserted in series in the circuit..that is, the circuit must be opened at the point of interest and the meter probes connected to those open circuit terminals...

You'll do much better searching online...here is one source:

http://www.circuit-magic.com/laws.htm

good luck...
 
  • #3
Hi Highly recommend the cartoon guide to physics. It helped me through general physics I and II, and now I make my students buy it. It will give you a real qualitative understanding of all that stuff.

 

FAQ: Setting Up Basic Circuits with a Multimeter

What is a multimeter?

A multimeter is a measuring instrument used to measure various electrical quantities such as voltage, current, and resistance. It typically has an analog or digital display and multiple dials or buttons to change the mode and range of measurement.

How do I set up a basic circuit with a multimeter?

First, turn off the power source and disconnect any components from the circuit. Then, select the appropriate mode and range on the multimeter for the quantity you want to measure. Next, connect the multimeter probes to the corresponding points in the circuit, making sure to match the polarity of the probes. Finally, turn on the power source and read the measurement on the multimeter display.

What are the different modes on a multimeter?

A multimeter typically has three main modes: voltage, current, and resistance. The voltage mode is used to measure the potential difference between two points in a circuit, the current mode is used to measure the flow of electric current, and the resistance mode is used to measure the opposition to the flow of current.

How do I know which range to select on the multimeter?

The range on a multimeter refers to the maximum value it can measure for a particular quantity. To select the appropriate range, start with the highest range and gradually decrease until you get a reading on the display. If the reading is too high, switch to a higher range to get a more accurate measurement.

What are some common troubleshooting tips when using a multimeter?

If you are not getting a reading on the multimeter, check the batteries and make sure they are functioning properly. Also, double-check the connections in the circuit and make sure the probes are making good contact. If you are getting unexpected readings, make sure you have selected the correct mode and range for the quantity you are trying to measure.

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