Draw a graph of potential difference (V) versus current (I) for an ohmic resistor.

How are the potential difference (V), current (I) and resistance (R) related ?

To study the dependence of potential difference (V) on current I across Resistor (R), Four circuit diagrams are prepared. (i) Select the circuit diagrams which are correct. (ii) Give reason for the circuit diagrams which are not correct.

The values of current (I) flowng through a given resistor of resistance (R ), for the corresponding values of potential difference (V) across the resistor are as given below : Plot a graph between current (I) and potential difference (V) and determine the resistance (R ) of the resistor.

Give two differences between an ohmic and non ohmic resistor.

You have following material : An ammeter ( 0-1A0 ,a voltmeter ( 0-3V) , a resistor of 20 Omega , a key, a rheostat, a battery of 3 V and seven connecting wires. Using this material draw a labelled circuit diagram to study the dependence of potential difference (V) across a resistor ont he current (I) passing through it.

In an experiment of verification of Ohm's law, following observations are obtained. Draw a V-I graph and use this graph to find : the potential difference V when the current / is 0-5 A,

While stud dying the dependence of potential difference (V) across a resistor on the current (I) passing through it, in order to determine the resistance of the resistor, a student took 5 readings for different values of current and plotted a graph between V and I. He got a straight line graph passing through the origin. What does the straight line signify? Write the method of determining resistance of the resistor using this graph.

Voltmeter V and Ammeter A are used to measure the total potential difference of the circuit and the current through each resistor. Which is the correct circuit ?

The resistance R of a metallic conductor is equal to the ratio of potential difference V across the resistor to the current I through the conductor. Calculate R given tat V=(11.1+-0.1) volt and I=(5.5+-0.5)A

The slope of the graph showing the variation of potential difference V on X-axis and current Y-axis gives conductor