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Removing the resistor that you are measuring while the circuit is still on, would create an excessive amount of current to flow through the galvanometer, possibly damaging it.

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Q: Why is one need to turn off the circuit in between measurement when using the wheatstone bridge?
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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.


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 is the concept of the kelvin bridge circuit?

Kelvin Bridge: This Bridge is a modified version of Wheatstone Bridge and provides greatly increased accuracy in the measurement of low value resistances, generally below 1 ohm.


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.


State 3 functions of wheatstone bridge?

Wheatstone bridge is used to calculate the resistance of unknown resistor in the circuit.


Why using wheatstone bridge in transducer?

You use a transducer in a wheatstone bridge. The wheatstone bridge allows you to find an unknown resistance.


What is the wheat stone bridge principle?

It is an circuit that is used to find the value of the resistances. The main principle behind it is the balancing an circuit by means of varying an resistance on connected to an arm of the circuit.When the resistance become equal to the variable resistance no current flows thus we can find the value of the resistance.


What is a Wheatstone bridge used for?

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.


How do you troubleshoots?

with a wheatstone bridge


What are the two main types of bridges in electricity?

The two main types of bridges in electricity are Wheatstone bridge and Kelvin bridge. The Wheatstone bridge is used to measure resistance while the Kelvin bridge is used to measure low resistance values. Both bridges are commonly used in electrical and electronic circuit analysis for accurate measurements and fault detection.


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.