Question

In the experiment to study the dependence of current (I) on potential difference ( V) across a resistor,a student obtained a graph as shown.
i) what does the graph depict about the dependence of current on the potential difference?
ii) find the current that flows through the resistor when the potential difference across it is 2.5V.do this with each step.
I(A)= 0.1,0.2,0.3,0.4
V(volts)=1,2,3,4

Answer 1

Answer:

The student will get a straight line in the graph because

Explanation:

R=V/I

R1=V1/I1

0.1/1=0.1

R2=V2/I2

0.2/2=0.1

R3=V3/I3

0.3/3=0.1

R4=V4/I4

0.4/4=0.1

Since the resistence of all the resistors(r1,r2,r3,r4) are the same he will get a straight line in the v-i graoh