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The following graphs represent the current versus voltage and voltage versus current for the six conductors A,B,C,D,E and F. Which conductor has least resistance and which has maximum resistance? |
Answer» Solution : According to ohm.s law, `V=IR` RESISTANCE of CONDUCTOR, `R=(V)/(I)` Graph-I: Conductor A, `I=4A and V=2V` `R=(V)/(I)=(2)/(4)=0.5Omega` Conductor B, `I=3A and V=4V` `R=(V)/(I)=(4)/(3)=1.33Omega` Conductor C, `I=2A and V=5V` `R=(V)/(I)=(5)/(2)=2.5Omega` Graph-II: Conductor D, `I=2A and V=4V` `R=(V)/(I)=(4)/(2)=2Omega d` Conductor E, `I=4A and V=3V` `R=(V)/(I)=(3)/(4)=1.75Omega` Conductor F, `I=5A and V=2V` `R=(V)/(I)=(2)/(5)=0.4Omega` Conductor F has least resistance, `R_(F)=0.4Omega`, Conductor C has maximum resistance, `R_(C )=2.5Omega` |
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