Ford Explorer Eddie Bauer
Electronics Engineering

# What voltage does a Resistor temperature detector put out?

###### May 26, 2009 6:09AM

None. An RTD is a passive device. It changes resistance as the temp varies. Your circuit must basically measure the resistance to determine temp. There are many different types of RTD's, each with it's own temperature curve.

## Related Questions

It depends on where you trying to find the voltage from. You can measure it across the resistor if you need the voltage for the resistor, and you would have to just put the positive end on one side of the resistor and then put the negative end on the other side of the resistor.

The protecting resistor is put in series with the LED so that you have a voltage divider - the supply voltage is split across the LED ( max 0.6v) and the remainder across the protecting resistor. So if your supply is 6volts, 5.4v will be across the resistor,

An electric heater is a resistor. It is a resistor with the right amount of resistance to take the required amount of power at the specified voltage. With a case to put it in and louvres to let the warm air circulate, that is a heater. Resistance in ohms is equal to the voltage-squared and divided by the watts.

12 volts...! The voltage drop across a 2 ohm resistor depends on the current flowing through it. As voltage (E) equals current (I) times resistance (R), if 1/2 amp is flowing through your 2 ohm resistor, 1/2 times 2 = 1 volt. If 1 amp is flowing through your 2 ohm resistor, 1 times 2 = 2 amps. Piece of cake. If the two ohm resistor is the only component in the circuit, it will drop whatever the applied voltage is. Put a 2 ohm resistor across a 6 volt battery, it drops 6 volts. If you put your 2 ohm resistor across a 9 volt battery, it drops 9 volts. Another way to say voltage drop may help. The voltage drop across a resistor is the voltage it "feels" when in a circuit. And that last couple of examples says that very well. In a circuit where a given resistor is the only component, it drops all the voltage in the circuit. It "feels" all the voltage in the circuit. In a circuit where there are 2 resistors of equal value in series, each one drops or "feels" half of the applied voltage. (The sum of the voltage drops equals the applied voltage.) As you work more with simple circuits using resistors in different arrangements with a given voltage source, try thinking of the voltage drop of a resistor as the voltage it "feels" when the circuit is energized.

Because if you dont you will burn and might get athsma Because if you dont you will burn and might get athsma Because if you dont you will burn and might get athsma

Depends on the current. Put a resistor in-line with the current, then measure the voltage across the resistor. V=RI. So, divide the measured voltage by resistor value. Be careful with the size of the resistor, as Power dissipated in a resistor is R*I^2 or V^2/2. So, a 1-Amp current into a 1 Ohm resistor will result in a 1Watt power dissipated in the resistor. If it's too small, it'll burn. Also, notice that if you do that, you haven't measured the current in the original circuit. You've measured the current when an extra resistor is installed in the original circuit, and that's different.

Simply put, the purpose of a resistor is to 'resist' the flow of current. Ohm's Law tells us that for a given voltage, the larger the resistance, or value of that resistor, the lower the current that will flow. Ohm's Law states that I (current) = E (voltage) / R (resistance) - where current is measured in amps, voltage is measured in volts and resistance is measured in ohms.

Without actually performing a failure analysis on the specific resistor, there is no way to know what caused the blower motor resistor to fail. However, there are two likely causes, design and/or implementation. First a little info on the setup. The blower motor is a brushed motor. One way to use the same motor and get different speeds is to vary the voltage to the motor. More voltage will give more speed, less voltage will give less speed. One way to "adjust" the voltage to the motor is to put a resistor in the power line to the motor. The resistor will "absorb" voltage and give off the absorbed voltage as heat. The Malibu uses 4 different resistors to create 5 total blower speeds. The 5th setting is with no resistor in line. As the resistor absorbs voltage and gives off heat, eventually the resistor will burn out and need to be replaced. There are many different quality levels of resistors. Some resistors are high quality and will last longer than the car will be used. Some resistors are low quality and will fail while the car is still in service. Engineering selected the particular resistor used in the resistor pack. Perhaps, if the resistor burned out, the design is at fault as the part wasn't selected correctly. Implementation could be how the part was installed, perhaps the solder joint (how the resistor is connected) failed as the solder wasn't flowed correctly. There is nothing you could have done as a consumer to increase or decrease the life of the resistor.

there are batteries in the vines. get them and put them in the metal detector.

A water heater element will burn out in a mater of seconds if you apply voltage to it while it is not submerged in water.

You can test it by puting it in forward bias with a resistor. Use a dc voltage source of 5 volts and put it in series with 250 Ohms resistor. Or use 9volts with a 450 Ohms resistor. Basically you need 20mA of forward current usually. Smaller current will reduce brightness.

Resistor values are given in ohms. A value may be selected to deliver a specific current at a given voltage. This is given in what is known as Ohm's Law where: Voltage (V) = Current (A) X Resistance (Ohm) A 12ohm resistor placed across a 12V battery would pass 1Amp of current and put out 12W of heat.

Many multimeters have an ampere scale. The basic idea is that the current has to go through the meter in series with a load. ( meters have a fuse for the forgetful). If there is no ampere scale, put a small value precision resistor (like a 0.01 ohm 5-20W)in series with the load and measure the voltage drop across the resistor. Let's say the voltage across the resistor is 1 Volt, then 1V/0.01=100 Amps.

A resistor is an Electrical component that is uses to divide current and voltage up. They are used to make sure a certain component (for example an LED) gets the correct amount of current and voltage to preform efficently. Resistors have more uses than the ones I have just described, one more example is they can make the timing of a timer change. If u put a bigger resistor then the time delay goes up ect.

Put the resistor symbol ie zig zag. Then put a crossing line with arrow headed at the top.

Ohms law is: R= V x I (resistance = voltage / current) ...where an led typically likes 20mA (0.02A) of current running through it and 2V of voltage across it, therefore: R= V x I = (220-2) / 0.02 = 218 / 0.02 = 10,900 ohms = 10.6kohms (10kohms will do fine). hope that helps

A: A thermocouple is created from wires of two different metal welded together to form two junctions. These two junctions will generate a dc voltage according to the temperature difference between the junctions. A thermistor is a resistor that will change resistance as temperature is impressed on it. A thermistor measures temperature. A thermocouple measures temperature difference between two points. To measure temperature using a thermocouple, you need to know the temperature of one of the points. The two junctions are sometimes called the "hot junction" and "cold junction." It used to be standard to put the cold junction into a known temperature environment--often an ice water bath, since that is known to be 0 degC. The hot junction is then located at the point where temperature is to be sensed. Thermocouple voltage vs. temperature difference is non-linear and the voltage difference varies depending on the materials used to create the thermocouple. For example, for a chromel-alumel TC (called Type-K), the curve is a 9th order polynomial. To convert voltage to temperature, either the polynomial must be calculated for each measurement or entries in a table used.

Sure, but what you would have to do would be to put the switch in the TEST circuit of the detector.

Electrons will exit the resistor on the more positive end (and vice-versa). Resistors do not provide voltage (EMF), nor cause current. Other circuit components must cause current flow through the resistor in order to have a voltage drop across it. Otherwise, we cannot answer this question.

you would have to put some type of resistor in the circuit with the motor...the resistor would have to be in series with the motor and would have to be of a high enough value to lower the voltage by 9 volts....There is a formula for working this out but you would need the amperage of the motor to figure this....

Remove the electrical connector from the old resistor. Remove the screws holding the resistor in place. Remove the old resistor. Put in the new one and screw in the screws. Attach the electrical connector.

No. The person who designed your appliance had a 12v adapter, so when he designed the adapter connector he put a resistor in it to drop the voltage to 9v.