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If the value of a resistor is high, it limits the flow of electric current through a circuit, resulting in a lower current for a given voltage according to Ohm's Law (I = V/R). This can lead to reduced power consumption and heat generation, but may also cause insufficient current for devices that require a certain level of power to operate effectively. In some applications, a high resistor value can help protect sensitive components from excessive current. However, if the resistance is too high, it may prevent the circuit from functioning altogether.
What else can I help you with?
What do the first 3 bands on a resistor indicate?
The first 3 band on a resistor indicate the value of that resistor.
Is it true that the higher a resistance value the higher the voltage drop?
Greater value resistor will absorb more voltage than smaller value. The more voltage absorb with same value current flow, the larger body mass resistor will require. Body size depends on type of resistor (material resistor is made of).
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 happens when resistance is varied in a circuit?
A resistor will not change its value, unless the voltage exceeds the designed power capacity of the resistor. As the voltage increases, the current will increase, if the current gets too high it will cause the temperature of the resistor to increase, if the temperature exceeds the power rating of the resistor then the resistance WILL change. If it goes too High in temperature the resistor will open and current will no longer flow. A resistor is used to control current, and indirectly the .voltage depending on the application. Hope This helps. You must use Ohms Law to see the relationship.
What happen to the phase angle if the value of capacitor is fixed and the value of resistor is changed?
The phase angle will either go up or down as well, depending on the new value of the resistor.
What happens when a switch in a current is opened?
current through the switch become 0.and switch become a high value resistor.
What happens when a switch a current is opened?
current through the switch become 0.and switch become a high value resistor.
What happens to the reading on an ammeter if the value of a variable resistor is increased?
it explodes and burns everyone in the room.
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.
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 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.
What happens in a series circuit if one of the resistors is replaced with a resistor having a lower resistance value?
In a series circuit, if one resistor is replaced with a resistor of lower resistance, the total resistance in the circuit decreases. This leads to an increase in the overall current flowing through the circuit.
What do the first 3 bands on a resistor indicate?
The first 3 band on a resistor indicate the value of that resistor.
Your swamp cooler switch works on high only does not work on low speed?
there is a resistor on the fan motor that has gone bad, some models have a resistor unit mounted near the fan in case this happens.
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.
