The value of current, `I`, flowing in a given resistor for the corresponding values of potential difference, `V`, across the resistor are given below :
`{:(I("ampere"),0.5,1.0,2.0,3.0,4.0),(V("volt"),1.6,3.4,6.7,10.2,13.2):}`
Polt a graph between V and I and calculate the resistance of the resistor.

(a) What is the ratio of potential difference and current known as? (b) The values of potential difference V applied across a resistor and the corresponding values of current I flowing in the resistor are given below: {:("Potential difference"V("in volts"),:,2.5,5.0,10.0,15.0,20.0,25.0),("Current,I"("in amperes"),:,0.1,0.2,0.4,0.6,0.8,1.0):} Plot a graph between V and I, and calculate the resistance of the resistor. (c) Name the law which is illustrated by the above V-I graph. (d) Write down the formula which states the relations between potential difference, current and resistance. (d) The potential difference between the terminals of an electric iron is 240V and the current is 5.0A. What is the resistance of the electric iron?

Find the resistance of a conductor if the electric current flowing through it is 0.35 A when the potential difference across it is 1.4 V.

Graphs plotted by four students A, B, C and D for the experiment "To study the dependence of current (I) on the potential difference (V) across a resistor" are shown below : The correct V-I graph is :

What would be the resistance of a conductor if the current flow through it is 0.35 A when the potential difference across is 1.4 V?