For a cell, the graph between the p.d.(V) across the terminals of the cell and the current I drawn from the cell is shown in the fig. the emf and the internal resistance of the cell is E and r respectively

Equivalent resistance across A and B in the given circuit if r = 10 , R = 20 is

A part of circuit in steady state along with the currents flowing in the branches, the value of resistances is shown in figure. Calculate the energy stored in the capacitor

In the steady state, the energy stored in the capacitor is

In Wheat stone’s bridge shown in the adjoining figure galvanometer gives no deflection on pressing the key, the balance condition for the bridge is :

A current of 0.10 A flows through the 25 resistor represented in the diagram to the right. The current through the 80W resistor is:

In the circuit shown in figure, the potentials of B,C and D are :

The energy stored in the capcitor is

The vapour density of a gas is 11.2. The volume occupied by 11.2 g of this gas at N.T.P. is

The r.m.s velocity of hydrogen is  times the r.m.s. velocity of nitrogen. If T is the temperature of the gas,

The difference of  and its reciprocal is

So here the concept of reciprocals and reciprocating the numbers is used. It is basically comparable to flipping the number on its side. Here we were given the numberand the difference between this number and its reciprocal is 105/304.

Which of the following volume (V)- temperature (T) plots represents the behaviour of one mole of an ideal gas at one atmospheric pressure?

The van der Waal’s parameters for gases W, X, Y and Z are

Which one of these gases has the highest critical temperature?

The following graph illustrates

At constant volume and temperature conditions, the rate of diffusion D_A and D_B of gases A and B having densities  and are related by the expression,

The graph (y x) against is as shown. Which one of the following shows the graph of y against ?