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voltmeter as shown in the figure given below.

PROCEDURE

1. Connect the circuit in the similar manner as shown in circuit diagram or
apparatus arrangement with one of the unknown resistors.
2. Find the values of two given unknown resistors R1 and R2 by adopting the
procedure given in experiment 5 and record the observations in the
observation table.
3. Using Ohm’s law, find the value of each resistance. Let it be R1 or Rr
4. Connect the given resistors in parallel combination between the two terminals
of the voltmeter as shown in figure above.
5. Put the plug in the key and take the readings of ammeter and voltmeter.
6. Repeat step 5 three times by changing the position of the sliding contact of the
rheostat.
7. equivalent resistance of the combination.