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Why do theoretical values of equivalent resistance differ from experimental values?

Theoretical values of equivalent resistance can differ from experimental values due to several factors, including the tolerance and imperfections in the resistors used, variations in temperature affecting resistance, and the limitations of measurement techniques. Additionally, real circuits may have parasitic elements like capacitance and inductance that are not accounted for in theoretical calculations. These discrepancies highlight the importance of considering practical conditions when analyzing electrical circuits.


What is the function of ohmmeter?

An ohmmeter is a device used to measure the electrical resistance of a circuit component or material. It works by sending a known current through the component and measuring the voltage drop across it. The ohmmeter then uses Ohm's Law (V=IR) to calculate the resistance of the component in ohms. This measurement helps in troubleshooting electrical circuits, testing the integrity of components, and determining if there are any faults or breaks in the circuit.


What is equal to voltage divided by?

Voltage divided by resistance is equal to current, according to Ohm's Law, which states that ( V = I \times R ) (where ( V ) is voltage, ( I ) is current, and ( R ) is resistance). Therefore, rearranging the formula gives ( I = \frac{V}{R} ). This relationship is fundamental in electrical circuits, illustrating how voltage influences the flow of current through a given resistance.


What is 1.0mohms?

1.0 milliohm (mΩ) is a unit of electrical resistance equal to one-thousandth of an ohm. It is commonly used to measure very low resistances in electrical components or circuits, such as in power systems or high-performance electronics. Milliohm measurements are important for applications where minimal resistance is crucial for efficiency and performance.


Do fuses protect against - A short circuits B overoading C lightning surges D large ground faults?

Short circuits.

Related Questions

Why dont series circuits shine as bright as parallel circuits?

By connecting components in series, you are increasing the equivalent resistance (known as thevenin resistance) of the circuit. Power is equivalent to Voltage^2 / Resistance. Therefore, by increase the resistance, you are decreasing the amount of power provided by the source.


How you can calculate ampere?

Voltage (volts) divided by Resistance (ohms). For AC circuits the resistance part of this formula is replaced by "impedance" which involves the effects of capacitors and inductors as well.


What is meant by equivalent resistance of a series combination?

Answer: The equivalent resistance of a series of resistors is as follows:Suppose you have three 120 Ohm resistors:A---/\/R1\/\------/\/R2\/\------/\/R3\/\---BThe equivalent resistance of point A to point B is the resistance of R1, R2 and R3 in series.Suppose we would want to replace R1, R2 and R3 with a single resistor, R4:A---/\/R4\/\---BThe resistance of R4 would be 360 Ohms, since equivalent resistance of a series combination is:Req = R1 + R2 + R3Answer: What is meant by equivalent resistance is that if you replace (for example) two or three circuits with whatever you calculate (see the other reply, above) as the "equivalent resistance", the effect on the circuit in general will be the same. For example, the same amount of current will flow.


What is the equivalent resistance through the enire circuit of 90 volts?

Not enough information. In the case of simple circuits, usually you would add resistances that are in series, and use a slightly more complicated formula for resistance that are in parallel. You CANNOT determine an equivalent resistance known only the voltage. However, if you know the total current, you can divide the voltage by the total current to get the equivalent resistance.


What is the relationship between resistance and temperature in electrical circuits?

In electrical circuits, the resistance of a material typically increases as its temperature rises. This relationship is known as temperature coefficient of resistance.


What does starting resistance refer to in the context of electrical circuits?

Starting resistance in electrical circuits refers to the initial resistance encountered by a device when it is first turned on. This resistance can affect the flow of current and the performance of the device.


What is esr electrical?

ESR stands for Equivalent Series Resistance. It is a measure of the internal resistance of a capacitor. Lower ESR values indicate better performance in terms of energy efficiency and stability in electrical circuits.


Can you use resistance in place of diode in clipping circuits?

no we not use resistance in place of diode.


Why do theoretical values of equivalent resistance differ from experimental values?

Theoretical values of equivalent resistance can differ from experimental values due to several factors, including the tolerance and imperfections in the resistors used, variations in temperature affecting resistance, and the limitations of measurement techniques. Additionally, real circuits may have parasitic elements like capacitance and inductance that are not accounted for in theoretical calculations. These discrepancies highlight the importance of considering practical conditions when analyzing electrical circuits.


What are the multiple resistance circuits?

Multiple resistance circuits are electrical circuits that contain more than one resistor connected in various configurations, such as series, parallel, or a combination of both. These circuits are commonly used in electronic devices and systems to control the flow of current and voltage. The total resistance in a multiple resistance circuit can be calculated using different formulas depending on the arrangement of the resistors.


What are some series parallel circuits practice problems that I can solve to improve my understanding of electrical circuits?

Here are some series-parallel circuits practice problems you can solve to improve your understanding of electrical circuits: Calculate the total resistance in a circuit with two resistors in series and one resistor in parallel. Determine the current flowing through each resistor in a circuit with three resistors in parallel. Find the voltage drop across each resistor in a circuit with two resistors in series and one resistor in parallel. Calculate the total power dissipated in a circuit with resistors connected in both series and parallel configurations. Determine the equivalent resistance of a complex circuit with multiple resistors connected in series and parallel. Solving these practice problems will help you develop a better understanding of series-parallel circuits and improve your skills in analyzing and solving electrical circuit problems.


What do Two circuits that are equivalent have the same of?

If the two circuits have the same input impedance they are equivalent in respect of the input impedance.