To find value of unknown resistance by using meter bridge why position of R and S is interchanged ?

Explain how value of unknown resistor can be obtained by using meter bridge.

What should be the value of unknown resistance R so that equivalent resistance between P and Q is also R ?

If not current flows through the galvanometer the find the value of unknown resistance X. Assume that resistance per unit length of wire AB is 0.02 Omega//cm . then also calculate total current given by battery.

An unknown resistance R_(1) is connected is series with a resistance of 10 Omega . This combination is connected to one gap of a meter bridge, while other gap is connected to another resistance R_(2) . The balance point is at 50 cm Now , when the 10 Omega resistance is removed, the balanced point shifts to 40 cm Then the value of R_(1) is.

For the post office arrangement to determine the value of unknown resistance, the unknown resistance should be connected between.

The measurement of an unknown resistance R is to be carried out using Wheatstone bridge as given in the figure below. Two students perform an experiment in two ways. The first students takes R_(2) = 10 Omega and R_(1) = 5 Omega . The other student takes R_(2) = 1000 Omega and R_(1) = 500 Omega . In the standard arm, both take R_(3) = 5 Omega . both find R = (R_(2))/(R_(1)) , R_(3) = 10 Omega within errors.

200 Omega resistor is connected in one of the gaps of the meter bridge. Series combination of X Omega and 50 Omega resistors is connected in the second gap. Here unknown resistance X Omega is kept in a heat bath at a certain temperature. The unknown resistance and its temperature is....... and....... respectively if the balance point is obtained at 50 cm. The total length of the wire of the meter bridge is equal to 1 meter. The resistance of the unknown resistance at 0" "^(@)C temperature is equal to 100 Omega . alpha = 0.5 xx 10^(-3) ""^(@) C^(-1) for the material of the X Omega resistors.

In the, Ohm's law experiment ot find resistance of unknown resistor R, the arrangement is as shown. The resistance measured is given by R_("measured")=(V)/(i)V= voltage reading of voltmeter. i=current reading of ammeter. The ammeters and the voltmeter used are not ideal, and have resistance R_(A) and R_(V) respectively. For arrangement shown, the meausred resistance is

In the circuit shown here, what is the value of the unknown resistor R so that the total resistance of the circuit between points P and Q is also equal to R

In an experiment to determine an unknown resistance, a 100 cm long rets tance wire is used. The unknown resistance is kept in the left gap and a known resistance is put into the right gap. The scale to measure length has a least count 1 mm. The null point B is obtained at 40.0 cm from the left gap. We shell determine the percentage error in the computation of unknown resistance.