Why there is no current in galvanometer in Wheatstone bridge?

When Wheatstone bridge is in balance condition, the current through galvanometer will be. When the bridge is in balance condition, no current will flow through the galvanometer because potential difference between the two ends of galvanometer becomes same.

When no current flows through the galvanometer in Wheatstone bridge in the figure the bridge is said to be?

The bridge is in balance condition when no current flows through the coil or the potential difference across the galvanometer is zero. This condition occurs when the potential difference across the a to b and a to d are equal, and the potential differences across the b to c and c to d remain same.

When the Wheatstone bridge is in balance condition the current flowing through the galvanometer is?

zero
In a balanced wheat stone bridge, current in the galvanometer is zero.

How does current flow through a Wheatstone bridge?

In a typical Wheatstone bridge, four resistors (devices that create resistance to current in a circuit) are positioned in a circuit designed in such a way that the current from a battery splits, flows through the sequence of resistors, then recombines into a single conductor, as shown in the tutorial.

Does current flow in a balanced Wheatstone bridge?

When balanced, the Wheatstone bridge can be analysed simply as two series strings in parallel. As the two resistors are in series, the same current ( i ) flows through both of them.

Why does no current flow at balance point?

Because when the potential across the scale( potentiometer wire) and the unknown EMF applied are equal ,at equal potentials there is no flow of current as there is no potential difference between two ends . hence the galvanometer shows 0 reading.

Why there is no flow of current between two charged bodies when connected?

There is no flow of current between two charged bodies when connected because.

Why the current should not flow in the Metre bridge wire for a long time?

Answer: Passing current through the the potentiometer wire for a long time, raises its temperature and potential drop per unit length of the potentiometer wire does not remain constant, and this introduces an avoidable source of error in the experiment.

When there is no deflection in the galvanometer it shows?

Galvanometer shows no deflection, meaning no current will flow through the galvanometer.

Can a Wheatstone bridge be balanced with a galvanometer?

First, that galvanometer isn’t in parallel with any of the resistors in the Wheatstone bridge so your logic here doesn’t work. Second, ifthere is a current through the galvanometer, the bridge cannot be balanced. You can conclude this without resorting to any equations as follows (refer to the diagram):

What is the principle of Wheatstone bridge?

The Wheatstone bridge works on the principle of null deflection, i.e. the ratio of their resistances are equal and no current flows through the circuit. When is the Wheatstone Bridge balanced?

Does a galvanometer have current flowing through it?

A galvanometer will have current flowing through it unless the bridge is balanced when voltage is applied to the bridge. Here is a Wheatstone bridge circuit setup to measure an unknown resistance Rx. R1 and R2 are equal value precision resistors, say 100 ohms.

How to find the value of unknown resistance in Wheatstone bridge?

To find the value of unknown resistance the deflection on galvanometer made to zero by adjusting the variable resistor. This point is known as balance point of Wheatstone bridge. As we can see in figure, R1 and R2 are known resistor. R3 is variable resistor and Rx is unknown resistance. The bridge is connected with the DC source (battery).