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What is a resistor whose value can varied over a range of value called?
Variable resistor. The value of the variable resistor can be changed at any given moment.
2 resistors unequal value are in parallel. Would the power dissipated by the resistor with larger ohmic value be greater than the power dissipated by the resistor of lesser value?
No, because the power dissipated in a resistor is proportional to the square of the current through the resistor but only directly proportional to the resistance of the resistor (I^2 * R) and the current through the lower value resistor will be higher than the current through the higher value resistor, the lower value resistor will usually dissipate more power.
What is the relation between the size of the resistor and its value?
There is no relation between the resistor's ohms value and its size. The power of the resistor can be seen by its size. If the power is too small, the resistor can be destroyed.
What is color code of 0.27ohms resistor?
The colour code of a 0.27 ohm resistor is red (2) violet (7) silver (0.01) ______123456______Example of a 4 band resistorNote that band 1,2,3 and 5 makes up the 4 in use 27x0.01=0.27 The fourth band (number 5) indicate how accurate this resistor is. In this example, Gold, indicates accuracy within 5% of indicated value. For more information regarding calculation, please have a look at related question below.
What is the value of a 4-band resistor with yellow violet orange and silver as the bands?
47000 ohms with a 10% tolerance Yellow = 4 Violet = 7 Orange = 1000 (this is the multiplier) Silver = 10% tolerance
How do you work out resisters percentage?
On a color coded resistor, there are normally four color bands. The first three represent the value of the resistor and the fourth represents the tolerance of the resistor, i.e. the acceptable variation as a percentage from the stated value. No fourth band allows +/- 20% Silver allows +/- 10% Gold allows +/- 5% Red allows +/- 2% Brown allows +/- 1%
What is value of brown black black silver brown in resistor?
The value of a resistor with color bands brown, black, black, silver, and brown is calculated as follows: The first two bands (brown and black) represent the digits 1 and 0, giving a base value of 10. The third band (black) indicates a multiplier of 1 (10^0). The fourth band (silver) signifies a tolerance of ±10%. Thus, the resistor has a nominal value of 10 ohms with a tolerance of ±10%.
How do you get minimum and maximum value of resistor?
The minimum and maximum possible value is defined by the tolerance. To calculate the range of the resistor, simply add or remove the amount of the tolerance. For example, a 100Kohm resistor with 5% tolerance can range from 95Kohm through until 105Kohm. The lower the tolerance, the more accurate the resistor is.
What do the colours on resistor mean?
The colored bands on a resistor represent the resistor value and tolerance. The first two bands indicate the significant digits of the resistance value, the third band represents the multiplier, and the fourth band (if present) indicates the tolerance of the resistor. By decoding these colors, you can determine the resistance value of the resistor.
The rating of a resistor is always specified in terms of resistance and what maximum permissable dissipation value?
Wattage.
What is the largest value the resistor can be and still be in tolerance?
To determine the largest value a resistor can be while still being in tolerance, you need to know the resistor's nominal value and its tolerance percentage. For example, if a resistor has a nominal value of 100 ohms with a tolerance of 5%, the maximum allowable resistance would be 100 ohms + (5% of 100 ohms), which is 105 ohms. Thus, the largest value the resistor can be while remaining in tolerance is 105 ohms.
What is the color code of resistor value 0.1?
A 0.1 ohm resistor is color coded brown (1) black(0) silver (x 10-2).
What is the resistance value and tolerance of a resistor with Brown Green Red Silver?
15 k ohms with a 10% tolerance.
How can you find a resistance of resistor without DMM explain the method with the help of example?
Hi You can find the value of the resistor by using colour code printed on the resistor. 1. Hold the resistor such that the colour code starts from left. 2. Each of the colour bands present on the resistor specifies a value. 3. The first colour band represents the first significant figure, the second band represents the second significant figure and the third band indicates the multiplier. The fourth band represents the tolerance. Gold band- 5%, Silver band-10%, No band-20% 4.Find the appropriate values for the colour by using the chart 1. 5. Find the value of the resistor by using the formula 1. Chart1 Example: Here first band represent brown. Second band represent black. Third band represent red . Fourth band represent gold. The value of resistor = 10 x 102 ± 5% = 1kΩ ± 5%
Why does resistance value measured using multimeter differ from one decoded using colour band?
Resistors have tolerance. So does the multimeter. Standard resistors range from 20% (no fourth band), to 10% (fourth band silver), to 5% (fourth band gold). Resistors will not normally measure exactly what you expect, and proper circuit design must take this into account.The multimeter may not be calibrated correctly.
What does 1 4W and 1 8W means for resistors and do they affect the value of the resistor?
It means the maximum power each one is capable of dissipating. The power dissipated by a resistor is (current through it)2 x (its resistance). If you exceed the power rating of a resistor, it will overheat, and that always increases its resistace value, at least for as long as it remains hot. If you take it to the extreme, the resistor can melt, smoke, crack, explode, etc. The power rating of a resistor has no direct effect on its resistance value.
What are resistor values defined by?
Resistor value is defined by the Resistance the resistor offers in Kilo ohms/ohms value given by color codes on the resistor.
