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What does the physical size of a colour-coded resistor indicate?
Wiki User
∙ 9y ago
the physical size tells how much power it can dissipate (watts)
Wiki User
∙ 14y ago
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How can changes in the size of a glacier indicate climate changes?
no
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a change in size, shape or the state of matter is a physical change. True for A+.
Physical properties such as size and magnetism can be used to?
physical change
The size of what natural disaster is not necessarily an indication of its intensity?
The size of a hurricane and a tornado does not necessarily indicate the intensity of the natural disaster.
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i am pretty sure it is a physical property! :)
Can you measure the physical size of a resistor to determine its wattage?
there might be ways to get the power rating by measuring the size of the resistor. but as the physical size of the resistor increases, its power rating also increases..
What physical characteristic determines the power rating of a resistor?
The size of a resistor is a physical characteristic that determines its power rating.
What is the relationship between Wattage and resistance of resistor?
There is no direct relationship.Power ('wattage') is a measure of the rate at which the resistor can dissipate energy; excessive power means that a resistor cannot dissipate energy fast enough to prevent its temperature becoming excessive -excessive enough to damage the resistor.As the rate at which a resistor can dissipate energy is determined by its physical size, a resistor's power rating(maximum continuous power it can handle without exceeding its rated temperature) depends on the physical size of the resistor.On the other hand, the resistance of a resistor is notaffected by its physical dimensions, as a resistor can be manufactured to any particular value of resistance for whatever physical size is necessary to achieve its rated power.If you know a resistor's rated power and its resistance, then you can calculate the maximum continuous current that resistor can handle without overheating (using the equation: power = current squared x resistance).
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 do you call the variable resistor when it is set up to alter the size of the voltage over the resistor?
A potentiometer.
What is the reason for putting a voltage rating on resistors?
Due to the physical construction and size of the resistor, at a certain voltage, the insulation will break down and the applied voltage will arc over. This is generally bad. Operating the resistor within its voltage rating will prevent this failure mode.
Why resistor size does not varies with its value?
A: A resistor size is determined by the usage or its power dissipation. the bigger the size the more power it can dissipate due to the extra surface. SIZE is a function of power dissipation and has nothing to do with its value
How many watt values are there for resisters?
Some of the more common values are 1/8, 1/4, 1/2, 1 and 2 watts. On PC boards the larger resisters are not placed adjacent to the board but connected into the board above the board using standoffs. This is to let air circulate around the resistor to carry away the heat generated by the resistor. The physical size of the resistor reflects the resistors ability to dissipate the heat which builds up inside the resistor. As the wattage goes up so does the physical size of the resistor. Resistors that dissipate very large amounts of power (watts) are usually wire-wound resistors. Wire-wound resistors can be as high as 100 watts.
What does the size of a correlation coefficient indicate?
Size of variables
How do you tell the engine size of a Honda dirt bike?
It will usually indicate on the bike itself.! But if it doesn't you can tel by the size of the radiators (small 250- big 450) or the physical size of the motor, the 250 will have allot of clearance or open spaces.! Hope that helps
How does the Resistance and Wattage relate to maximum voltage of a wirewound resistor?
The power rating of a resistor is determined by its physical size. The greater its surface area, the better it can dissipate energy, so the higher its power rating. Knowing its power rating and its resistance will determine the maximum voltage that can be applied to it in order to ensure the resulting current doesn't cause the resistor to overheat. This can be determined by manipulating the equation, P = U2/R.
Is the size of an object a physical property or physical change?
An object's size is a physical property of the object.
