Electricity Tes...

 The net resistance between $${\text{X and Y}}$$ is 

In the following part of the circuit, potential difference between points A and B equals to

Two wires of same dimensions but resistivities $${\rho _1}$$ and $${\rho_2}$$ are connected in series. The equivalent resistivity of the combination is:

In the circuit shown in figure, the ammeter reads a current of?

The current in the given circuit will be:

The equivalent resistance between the points A and B is:

Resistors $$R^{}_{1}$$ and $$R^{}_{2}$$ have an equivalent resistance of 6 ohms when connected in the circuit shown below. The resistance of $$R_1$$ could be:

The current through the ammeter shown in the figure is $$ \dfrac{10}{9}A$$. If each of the $$ 4 \Omega$$ resistor is replaced by $$2\Omega$$ resistor, the current in the circuit will become 

$$9$$ Identical wires each of Resistance $$R$$ are connected to form a closed polygon. The equivalent resistance between the ends of any side is

In the given circuit the current through the cell is: