The change in the resistance of a substance with pressure, whether the voltage changes with resistan

The resistance of a substance is determined by the properties of the substance, and has nothing to do with other factors!

What you mean by the change of resistance with pressure is actually the use of the nature of resistance to show the change of resistance value by pressure.

This substance is mainly used in sensors.

Main technical parameters:

Product implementation standards.

iec584

iec1515

gb/t16839-1997

jb/t5582-91

Insulation resistance at room temperature.

The thermal resistance is 15-35 °C at an ambient temperature, the relative humidity of the instrument fitting valve is not more than 80%, and the test voltage is 10-100V (DC) The insulation resistance between the electrode and the outer sleeve is 100m.

Measurement of temperature and tolerances.

Model Graduation Number Temperature Measurement Range Accuracy Level Allowable Error: WZP PT100 -200-+500 Class A (LTLB Level (LTL.)

WZC CU50 CU100 -50-+100 LTL model naming.

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A section of resistance wire, when the voltage at both ends is 10V, the current is (50 ohms) when the voltage is reduced to 5V. When the voltage is zero, the resistance is (50 ohms).

Resistance is an inherent property of circuit components, which is only related to its own material, structure, environment and other factors, and will not change with the change of voltage and current in the circuit.

According to the voltage and current to find the resistance is 10, because the resistance will not change, so it is still 50 ohms, and both blanks are filled in 50

Solution: r=u i=10

Since the resistance is independent of the magnitude of voltage and current.

Hence added. 5v、0v

The voltage is also 50

r=v/i

So when the voltage is 10V and the current, the resistance r=10 ohms can be calculated.

When the voltage is reduced to 5V, the resistance is still 50 ohms, and if you ask about the current, you can calculate it according to the formula, the current is.

When the voltage is zero, the resistance is still 50 ohms. The current is also O.

A conclusion is attached to you. From the above answers, it can be seen that the current is directly proportional to the voltage, the higher the voltage, the greater the current, and the smaller the voltage, the smaller the current.

The reason is simple.

As can be seen in the question, these three voltage time periods are 10V, 5V, and 0V, and the same resistor is used.

Resistance is the physical quantity in a substance that hinders the flow of electric charge, i.e., the value of resistance.

For the resistor in the ideal state, the resistance value of the resistance does not change with whether there is a voltage added to the outside world, but the required resistance value must be obtained according to the conditions given in the question, such as obtained by the deformation of u=i*r, or r= *l s( : resistivity, l: resistance length, s:

resistance cross-sectional area).

So the answer to this question is 50

First of all,Resistance is an intrinsic property of matter, give you an iron curl, copper wire, or aluminum sheet, its resistance is determined, and its resistance will not change because of the change of the voltage applied at both ends.

Voltage is artificially applied to objects, how to have voltage, need to have a power supply. The size of the voltage also depends on the power supplyThe magnitude of the electromotive force.

Finally, let's talk about current. After the voltage and resistance are determinedThe magnitude of the current can be determined by Ohm's theorem, i.e.: current = voltage resistance. It's not hard to see:

If it is the same conductor (with a certain resistance), then the greater the applied voltage, the greater the current.

If the power supply is given (the voltage is constant), then the greater the resistance of the conductor, the less the current.