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A: To read ohms you will use it by reading in parallel and without any external voltage applied
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∙ 13y ago
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How will you get 3 ohm resistance using 2 ohm resistance?
connect 2 2ohm resistors in parallel and connect it to a series 2ohm resistor
Why you need to connect resistor in series for the practical voltage source?
A resistor is connected in series with a practical voltage source in order to determine the current produced by the source.
What instrument measures voltage?
Resistance is measured with an ohmmeter. A link is provided to a brief article on the ohmmeter posted at Wikipedia.Note that it is unusual in this day and age to have a device that will measure ohms and nothing else. The ohmmeter is usually included among the functions of a multimeter, and usually a digital multimeter or DMM.
What are some precautions do you take when using a milliammeter?
1. Use the meter in its rated range. 2. Connect it in series to measure the current.
What electrical measuring instrument is used to measure polarity index test?
A low resistance ohmmeter is used
What are two familiar mistakes when using an ohmmeter and a voltmeter?
Voltmeter connect in parallel with the circuit setting on voltmeter highest range first then to lower range. Ohmmeter we need to use the ohmmeter meter setting connect across the resistor
What is the circuit diagram on how to convert galvanomeer into ohmeter?
Just connect a resistor and a small battery in series with the galvanometer,change the markings on the meter's scale, and you have an ohmmeter.
Is an ohmmeter connected in series or parallel?
You almost NEVER do. 1) The circuit should be off and/or disconnected when using an ohmmeter. 2) It should be in parallel with the component as far as the rest of the circuit is concerned, but alone in series with the device its measuring.
How do you take care of an ohmmeter?
Never connect the ohmmeter's leads across a voltage.On an analog meter, adjust the zero before use.Turn your ohmmeter off when not in use, to protect against voltage drain.When your ohmmeter's battery is low, or your meter won't be used for a while, remove the battery to prevent damage to the meter from battery leakage.
Does the ohmmeter need to be parallel to the load when measuring resistance?
It does not matter, since the ohmmeter needs to be connected to the device in isolated mode. Series or parallel; they are both the same, in this case.
How do you connect an ohmmeter?
1) All power off !!! 2) Place leads across the object (resistor) to be measured.
What condition is unfavorable for the use of an ohmmeter?
An ohmmeter is used to check continuity and resistance. An unfavorable use would be to connect the meter to any power. Unless the meter has a safety feature, connecting it to any type of power will damage the meter.
What is the difference between a series ohmmeter and a shunt ohmmeter?
Basically, your series and shunt ohmmeters differ in circuit configuration. Your series ohmmeter is configured in a way that your "meter" (which has internal resistance) is connected in series to your "measured resistor" and we all know that those TWO resistances will ADD up causing some sort of inaccuracy. While on the other hand, your shunt ohmmeter is configured in a way wherein your "meter" is connected in PARALLEL to your "measured resistor" that will ease-up the inaccuracy but will only measure resistances ranging from 200 Ohms to 400 Ohms (typically and depending on your configuration).
What is pmmc type of instruments?
Produce of series type Ohmmeter using PMMC of Ifsd:100uA for range of 0-20kohm?
How do you convert galvanometer to ohmmeter?
Ohms are the unit of measurement for resistance, so an ohmmeter is a device that measures electrical resistance. A galvanometer measures the current flowing through the resistance, so the two are related. To convert a galvanometer into an ohmmeter, one needs an external battery.
How do you connect a ammeter into a circuit?
connect ammeter in series with load.
What an ohmmeter measures?
resistance to current flowAn ohmmeter meassures resistance
