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Variable resistor. The value of the variable resistor can be changed at any given moment.
What else can I help you with?
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.
Why resistor should disconnected from the circuit when measured the value of resistor?
if not disconnected you will measure the resistance of the circuit in parallel with the resistor.
What is precision resistor?
A precision resistor is a resistor that has an actual value that is very close (or precise) to its nominal (or stated value). Therefore, precision resistors have a very degree of accuracy of being very close to their nominal values.
What is the concept of resistor tolerance and its importance?
Resistor tolerance is how accurate the resistor value is. You may have a 10% tolerance, 820 ohm resistor, which means the actual value of resistance is 820 ohms +/- 82 ohms. If you design a circuit that has very stringent requirements for resistor values, you may need to purchase a resistor that has a smaller tolerance (like 5, 2, 1, .5%). The smaller the tolerance, the more expensive it will be (generally).
Decade resistor box?
A variable range of resistors built inside a box that can be varied as per our convenient. For example a set of kilo ohm resistors will be there,if u want 3 kilo ohm resistor then using the knob u can change the resistor value to your desired value. similarly there will be another set of resistors in mega ohm etc
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 is the range of resistor in water level detector?
The range of resistor value typically used in water level detectors is between 1k ohm to 100k ohm. The specific resistor value depends on the sensitivity required for detecting the water level change. It's important to choose the resistor value that provides a balance between sensitivity and stability in the detector circuit.
Which of transistor circuit is stable?
astable multivibrator type transistor is free running oscillator.so it has greater stablity . it can be varied by resistor and capacitor value
What is The plus minus limits of a resistors marked value called?
The plus-minus limits of a resistor's marked value are referred to as its tolerance. Tolerance indicates the acceptable range of variation from the specified resistance value, usually expressed as a percentage. For example, a resistor with a marked value of 100 ohms and a tolerance of ±5% can have an actual resistance between 95 ohms and 105 ohms. Tolerance helps in determining how closely a resistor's actual resistance matches its rated value.
What is the procedure to improve the voltage range of voltmeter?
A: by adding a big value resistor from the source while measuring across a low value
Describe the purpose of the coloured bands on a resistor?
The colored bands on a resistor indicate its resistance value and tolerance. By interpreting the color code, you can determine the resistance value of the resistor and the range within which the actual resistance may vary. This helps in identifying, sorting, and using resistors in electronic circuits.
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.
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.
Diff between weak and strong pull up resistor?
A strong pullup means using small value resistor for pull up whereas a weak pullup means using high value resistor for pulling the signal to Vcc. A strong pullup reduces the RC time constant. Soumen C
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.
