IF the current supplied to a variable resistor is constant, draw a graph between voltage and resistance.

The rate of heat developed in a conductor is constant. The relation between current (i) and the resistance ( r) of the conductor is

Heat is produced at a rate given by H in a resistor when it is connected across a supply of voltage V. If now the resistance of the resistor is doubled and the supply voltage is made V/3 then the rate of production of heat in the resistor will be

A cell of emf E and internal resistance r is connected to a variable external resistor R. the graph which gives the terminal voltage of cell V with respect to R is

A cell of emf E and internal resistance r is connected across a variable resistor R. Plot a graph showing variation terminal voltage V of the of the cell Versus the current I. Using the plot,show how the emf of the cell and its internal resistance can be determined.

What will be the current flowing through the 6 KΩ resistor in the circuit shown, where the breakdown voltage of the zener is 6V?

For a CE -transistor amplifier the audio signal voltage across the collector resistance of 2 k Omega is 2V. Given the current amplification factor of the transistor is 100 find the input signal voltage and base current if the base resistance is 1 k Omega .

For a CE -transistor amplifier the audio signal voltage across the collector resistance of 2 k Omega is 2V. Suppose the current amplification factor of the transistor is 100 find the input signal voltage and base current if the base resistance is 1 k Omega .

You have three resistors of values 2Omega,3Omega and 5Omega . How will you join them so that the total resistance is less than 2Omega . Draw diagram and find the total resistance.

A 24 v battery of internal resistance 4Omega is connected to a variable resistor. At what value of the current drawn from the battary is the rate of heat produced in the resistor maximum?

A current of 2 A flows through a 2 Omega resistor when connected across a battery. The same battery supplied a current of 0.5 A when connected across a 9 Omega resistor. The internal resistance of the battery is