List of top Physics Questions on Combination of Resistors - Series and Parallel

Find the net resistance of the network of resistors connected between \(A\) and \(B\), as shown in the figure.
Find the net resistance of the network of resistors connected between \(A\) and \(B\), as shown in the figure.
5 equal resistors are combined suitably to get maximum and minimum effective resistances. Their ratio is
Consider two circuits, (A) and (B), each having two resistors. One of them has a positive temperature coefficient of resistance, \(+\alpha\), while the other one has a negative temperature coefficient of resistance, \(-\alpha\), as shown in the figure. The current through these circuits are denoted by \(I_A\) and \(I_B\). At initial temperature, the resistance of the two resistors is \(R_0\). As the temperature is increased, the correct option that describes the variation of current in these circuits is:
Four resistors of \(8\,\Omega\) each are connected in parallel. Then five such equivalent combinations are connected in series. What will be the total resistance?
A uniform wire of resistance \(R\) is cut into four equal parts. These parts are then connected in parallel. The equivalent resistance of the combination is:
A wire of uniform cross-section \(A\), length \(l\) and resistance \(R\) is bent into a complete circle. The equivalent resistance between any two diametrically opposite points will be:
Choose the correct combination of three resistances \(1\ \Omega\), \(2\ \Omega\) and \(3\ \Omega\) to get equivalent resistance \(\dfrac{11}{5}\ \Omega\).
The resistors of values \(3\Omega\), \(6\Omega\) and \(18\Omega\) are connected in parallel in a circuit. The equivalent resistance in the circuit is
A uniform wire of resistance 12 \(\Omega\) is cut into three pieces in the ratio of length 1: 2: 3. Now the three pieces are connected to form a triangle. A cell of emf 8 V and internal resistance 5 \(\Omega\) is connected across the highest of the three resistors. The current through the circuit is:
From the combination of resistors with resistance values $ R_1 = R_2 = R_3 = 5 \, \Omega $ and $ R_4 = 10 \, \Omega $, which of the following combination is the best circuit to get an equivalent resistance of 6 $ \Omega $?
Two resistances combine in series order to provide 50 ohms resultant resistance, and when they combine in parallel order, they provide 8 ohms resultant resistance. Then the value of each resistance is:
In the following figure, the equivalent resistance between ‘A’ and ‘B’ will be
equivalent resistance between ‘A’ and ‘B’
A wire of resistance 20 \(\Omega\) is divided into 10 equal parts. A combination of two parts are connected in parallel and so on. Now resulting pairs of parallel combination are connected in series. The equivalent resistance of final combination is _______ \(\Omega\).
A carbon resistor of (47 ± 4.7) kΩ is to be marked with rings of different colours for its identification. The colour code sequence will be
The electrostatic force between the metal plates of an isolated parallel plate capacitor C having a charge Q and area A, is