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What is the main objection of ohm's law in measuring resistance?
Wiki User
∙ 10y ago
Temperature.
Ohms law is applicable to measure resistance of an element at constant temperature only.
Wiki User
∙ 10y ago
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Is ohms bigger unit to megohms?
An ohm is a unit of electrical resistance. A kilohm is 1,000 ohms resistance, while a megohm is 1,000,000 ohms resistance.
What is resistance expressed in?
Electrical resistance is measured in Ohms.
If 3 resistors of 56 12 and 33 ohms are in parallel what is there combined resistance?
The combined resistance is 7.6049 ohms.
Which adjustments have to be observed when measuring with a multimeter?
You check and adjust instrument zero and, if you are measuring ohms, you also check and adjust ohms zero.
What is the total resistance of a 6-ohm resistor and a 12-ohm resistor in a parallel series?
In series like so ---6 ohms ---- 12 ohms --- , the total resistance is just 6 ohms + 12 ohms.assuming you mean in parallel like this:_|---6 ohms-----|-|~|-_|---12 ohms---|then the resistance of this can be calculated like so:1/6 ohms + 1/12 ohms = 1/R (where R is the resistance of the circuit as a whole)2/12 ohms + 1/12 ohms = 1/R3/12 ohms = 1/R1/4 ohms = 1/Rso R = 4 ohmsA few notes, if the resistors are in parallel the total resistance will always be less than or equal to the lowest resistance in parallel (i.e 6 ohms in parallel with 12 ohms will have resistance less than 6 ohms).Also if two resistances in parallel are the same, then the resistance is half of the resistance of both resistors (i.e. 1/2 ohms + 1/2 ohms = 1/R; 1 = 1/R, R=1 ohm which is half of 2 ohms).This process can be extended to 2 or more resistors in parallel.i.e if we had a 6 ohm, 6 ohm and 12 ohm resistor in parallel we could go1/6 ohms + 1/6 ohms + 1/12 ohms = 1/R(1/6 ohms + 1/6 ohms) + 1/12 ohms = 1/R1/3 ohms + 1/12 ohms = 1/R4/12ohms + 1/12 ohms = 1/R5/12 ohms = 1/Rso R = 12/5 ohms or 2.4 ohms
What measures electrical resistance?
an ohm meter OR multimeter is used to measure the electrical resistance...
What part of the ohms scale of a meter are the most accurate resistance measurements made?
It really depends on what you are trying to get the resistance of. A piece of copper wire 30 feet long will only have a resistance of few ohms. A person can have a resistance of several million ohms. Making sure that your meter's leads are in good contact with whatever you are measuring is the best way to get an accurate reading.
What is the unit for measuring voltage?
Volts is the unit measurement for voltage Current is amperes or amps for short Resistance is ohms
What is the value for resistance 1100 ohms?
The number of ohms is, precisely, the value of the resistance.
Is ohms bigger unit to megohms?
An ohm is a unit of electrical resistance. A kilohm is 1,000 ohms resistance, while a megohm is 1,000,000 ohms resistance.
Electric current flows in a wire which is opposed by what?
Resistance, which is measured in ohms. long wires and heat are the main cause of resistance increases.
Resistance is measured in what?
Electrical resistance (and impedance) is measured in ohms(Ω).
What is the total resistance is V is 10 volts R1 is 1000 ohms and R2 is 1000 Ohms?
If they're connected in series the total resistance is 2000 ohms. If they're connected in parallel the resistance is 500 ohms.
A lenght of cirular wire as a resistance of 1 ohms if its the diameter was double its resistance woul be.?
Its resistance would be half , 0.5 ohms is the answer.
What is the Lowest ohms possible?
The lowest resistance is zero ohms.
What are ohms used for?
Ohms are used to measure electric resistance.
What has greater resistance 5ohms or 1000 ohms?
1000 ohms
