Parallel and series connections of resistors

The V-I graphs of parallel and series combinations of two metallic resistors are shown in (Fig. 3.53). Which graph represents the parallel combinations ? .

A 5Omega resistor is connected in series with a parallel combination of n resistors of 6Omega each. The equivalent resistance is 7Omega . Find n

A ciruit to verify Ohm's law uses ammeter and voltmeter in series or parallel connected correctly to the resistor. In the circuit :

cells can be connected in series ,in parallel and as well as combination of both the series and parallel .

Two identical resistors, each of resistance 15ohm are connected in (i) series and (ii) parallel, in turn to battery of 6V. Calculate the ratio of the power consumed in the combination of resistors in each case.

Draw a circuit diagram of an electric circuit containing a cell, a key, an ammeter, a resistance of 2 Omega in series with a combination of two resistors ( 4 Omega each) in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 Omega resistor be the same as that across the parallel combination of 4 Omega resistors ? Give reason.

The equivalent inductance of two inductances is 2.4 henry when connected in parallel and 10 henry when connected in series. The difference between the two inductance is

A parallel combination of an 8 Omega resistor and an unknown resistor R is connected in series with a 16 Omega resistor and a battery. This circuit is then disassembled, and the three resistors are then connected in series with each other oand the same battery. in both arrangements, the current through the 8 Omega resistor is the same. What is the unknown resistance R?

A combination consists of three resistors in series. Four similar sets are connected in parallel. If the resistance of each resistor is 2 Omega , find the resistance of the combination.

A circuit consists of a resistor of 1 ohm in series with a parallel arrangement of resistors of 6 ohm and 3 ohm. Calculate the total resistance of the circuit. Draw a diagram of the arrangment.