An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmetu, four cells. of 1.5V each and a plug key wu Id up. Draw a diagram of this drcuit in the 'ON' po1ltlon. Following graph Wi8 plotted between the value of potential difference (V) and electric current (I). State the concluion that you draw about the relation between V and I from thll graph.

An electric circuit consisting of a 0.5 m long nichrome wire XY, an am

1.	An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmetu, four cells. of 1.5V each and a plug key wu Id up. Draw a diagram of this drcuit in the 'ON' po1ltlon. Following graph Wi8 plotted between the value of potential difference (V) and electric current (I). State the concluion that you draw about the relation between V and I from thll graph.
Answer» Solution :Placement of ammeter, voltmeter, direction of current 4 cells in series with a closed key. RELATION : For a GIVEN resistance, current flowing through a conductor is directly proportional to potential DIFFERENCE across it, if other physical conditions REMAIN constant i.e., `V propI` .