0
Why wheatstone bridge is unsuitable for measurement of law resistance?
Wiki User
∙ 10y ago
The Wheatstone bridge is unsuitable for measuring low resistance because it relies on comparing the unknown resistance with other resistors in the bridge circuit, which limits its sensitivity for low resistance values. The voltage drop across the low resistance would be too small to provide accurate readings due to the small voltage differences involved. Additionally, any small variations in the resistors can greatly affect the accuracy of the measurement for low resistances.
Add your answer:
Earn +20 pts
Limitations of the wheatstone bridge?
The Wheatstone bridge can be sensitive to environmental factors like temperature changes and can be affected by resistance variations in the arms of the bridge. It requires precise resistor values for accurate measurements and can be limited in its ability to measure very small changes in resistance.
What is Difference between ohmmeter and Wheatstone's bridge?
An ohmmeter is a device used to measure the resistance of a component or circuit by passing a current through it and measuring the voltage drop. In contrast, a Wheatstone's bridge is a circuit used to measure an unknown resistance by balancing it against known resistances in a bridge configuration, without passing a current through the unknown resistor. Wheatstone's bridge is more accurate for precise resistance measurements compared to an ohmmeter.
What happens when unknown resistance is changed to other armin wheatstone bridge?
Changing the unknown resistance in a Wheatstone bridge will result in an imbalance in the circuit, causing a potential difference across the bridge. This potential difference can be used to determine the new value of the unknown resistance by adjusting other known resistances until the bridge is balanced again.
Compare the accuracy of the wheatstone and kelvin double bridge?
The Kelvin double bridge is more accurate than the Wheatstone bridge because it eliminates errors associated with lead resistance and contact resistance in the circuit. The Kelvin bridge uses four terminals to independently measure and compensate for these errors, resulting in more precise resistance measurements.
In physics what is the use of meter bridge?
A meter bridge is used to measure an unknown electrical resistance by comparing it with a known resistance. It works on the principle of Wheatstone bridge. By balancing the bridge circuit, the value of the unknown resistance can be calculated accurately.
Why using wheatstone bridge in transducer?
You use a transducer in a wheatstone bridge. The wheatstone bridge allows you to find an unknown resistance.
State 3 functions of wheatstone bridge?
Wheatstone bridge is used to calculate the resistance of unknown resistor in the circuit.
What is Wheatstone's bridge?
The wheatstone bridge is an instrument used to measure electrical resistance by means of balancing a bridge circuit. The bridge circuit contains two legs, one of which contains the unknown resistance. Variations in wheatstone bridge can be employed to measure inductance, capacitance, and impedance also.
What is a Wheatstone?
The wheatstone bridge is an instrument used to measure electrical resistance by means of balancing a bridge circuit. The bridge circuit contains two legs, one of which contains the unknown resistance. Variations in wheatstone bridge can be employed to measure inductance, capacitance, and impedance also.
What are the application of Wheatstone bridge?
to measure the unknown resistance
How does the Kelvin bridge differ from the wheatstone bridge?
kelvin's bridge is the modified version of wheatstone bridge and used to measure resistance values less than 1 ohm.
How the resistance is measure?
Using an ohmmeter, Wheatstone bridge, etc.
Why a wheatstone circuit is called a bridge?
An electrical circuit used to measure an unknown electrical resistance is called a Wheatstone bridge. It is called a bridge because it balances two legs of a bridge circuit.
When a Wheatstone bridge is in a balanced condition the center voltmeter in the bridge?
When the resistance in all four are equal
What is the difference between Wheatstone bridge and meter bridge?
WHEATSTONE BRIDGE : A wheatstone bridge is used to measure an unknown electrical resistance by balancing two legs of a bridge circuit, one leg of which includes the unknown compound.Its operation is similar to the original potentiometer. METER BRIDGE : A uniform resistance wire 1 meter in length, mounted above a scale marked in millimeters, with terminals added to make the device usable as either part of a wheatstone bridge or of a potentiometer.
Limitations of the wheatstone bridge?
The Wheatstone bridge can be sensitive to environmental factors like temperature changes and can be affected by resistance variations in the arms of the bridge. It requires precise resistor values for accurate measurements and can be limited in its ability to measure very small changes in resistance.
What is Difference between ohmmeter and Wheatstone's bridge?
An ohmmeter is a device used to measure the resistance of a component or circuit by passing a current through it and measuring the voltage drop. In contrast, a Wheatstone's bridge is a circuit used to measure an unknown resistance by balancing it against known resistances in a bridge configuration, without passing a current through the unknown resistor. Wheatstone's bridge is more accurate for precise resistance measurements compared to an ohmmeter.
