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What is the upper control limit of a 1 ohm resistor with a 20 percent tolerance?
Wiki User
∙ 7y ago
A 1 ohm 20% tolerance resistor should not exceed 1.2 ohms actual resistance.
Wiki User
∙ 7y ago
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What are two uses for variable resistors?
Volume Control Light Dimmer Tone Control Bass Control Treble Control Fan Speed Control
What is an electronic device that limits the amount of current that can flow through it?
A current limiter. Commonly used in well designed power supplies to make the power supply "Fold over" if output current exceeds a safe value. Commonly use a low value resistor in series with the output, and a circuit that senses the voltage across it. Although the above answer describes a circuit to limit current, the device that limits the amount of current flowing through it is a resistor.
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There is no age limit for starting birth control.you dont have to be a certain age
What is a resistor used for?
A resistor limits the amount of electrical current that passes through the circuit.Think of kinking a garden hose. The kink "resists" the flow of water.Similarly, a resistor "resists" the current flow and thus lowers the voltage to the following parts of the circuit which that current has to flow through.Another answerSimple...To resist or control the current flow.If a pure conductor (ie, wire) instead of a resistor is used, the path is said to be short circuited and, in theory - but not usually in practice - an infinite current would flow through it if the source was really able to deliver such a current.But, if there is some resistance in its path, the current taken from the source will always be limited to the potential difference produced by the source (measured in volts) divided by the resistance of the path (measured in ohms).I = E/R (Where I is current, E is volts and R is resistance)Another use of a resistor is whenever you need to produce a voltage drop in a circuit. This drop can can then be utilized for some other purpose, noting the voltage will differ depending on the load. If the load varies in resistance, so will the voltage drop.When no resistors are met by the current, the voltage which is actually the amount of work done in moving the charge will tend to zero. This means that the current flows without any resistance and is said to be a dead short to the source.
What size resistor is needed to allow a 220 volt coil in a relay operate on 277 volts?
You will need to know the amount of current flowing through the coil when 220 volts is applied across it. A resistor in series with the coil will limit the current so that the coil only sees 220 volts. The resistor will need to drop 57 volts. So, 57 volts divided by the current in amps will give you your required resistance. You will need a resistor with a high power dissipation rating with 57 volts across it. Your resistor will probaly need to dissipate several watts. For example: A 220 volt coil with 300 milliamps (.3 amps) will require a resistor of 733 ohms. The power dissipation of the resistor would need to be 17.1 Watts! You might try using a light bulb as a series resistor. Ensure that it can handle 57 volts. To complicate matters, is that AC or DC you are using? AC relays have inductance build in, in order to increase the specific "ac resistance", thus the same coil could use as little as 0,001A so you will need a very low value resistor. Anyway, if any 220V relay uses as much as 300mA, I doubt if you will be able to pick it up with one hand! Such a relay coil will draw about 66W of power! I have a 16A rated contact 230V relay. Its current is 0,0015A that is equivelant to 0.33W at 220V!
A resistor of 10k ohms resistance with tolerance of 5 percent is connected in parallel with another resistor of 5k ohms resistance and 10 percent tolerance.what is tolerance limit of parallel network?
6.67%
What does nick mean when he says that tolerance has a limit?
Tolerance has a limit means tolerance is a capability and every capability has a limit
Where are resistors placed to control voltage and current?
A: A RESISTOR is a passive component it cannot control voltage these components and/or current it can however limit
Is it possible to be charged with DUI at a BAC of 0.06 percent?
Yes, it is, especially for a minor, for which a zero tolerance limit is imposed.
What is the function of fixed resistor?
To limit the current
What is function of fixe resistor?
To limit the current
What is the reason for resistance in conductors?
reason for resistor in conductor as follows >> control or limit current flow >> Voltage drop at o/p stage >> for biasing the semiconductor
What is the job of a resistor?
To limit current flow in a circuit
What are the practical applications of resistor?
To limit current in circuit
What is d use of connecting resistor in circuits?
to limit the current
What size resistor is required to limit the current from a 12V battery to 2 mA?
In order to determine the Size of Resistor required we need1. Value of R=V/I=12/2E-3=6000 Ohms2. Power dissipated=VxI=12x2=24mW. Hence we can use 1/8W Resistor.3. Tolerance on R will depend on the error on Current that is acceptable. Say %4. The will depend on Tolerance,Bandwidth and Temp. Stability required.>2% Tol Any type Carbon, Metal Film>1%Metal Film/Wire Wound
What is tolerance limit?
The expected range of measurements produced by a given operation.
