Question

The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below –

I (A) |0.30|0.50|0.75| 1.33 | 2.00| 2.66 V( volt) |1.00 |2.00|3.00|5.00| 7.00 | 9.00

I) Plot a V vs. I graph in a graph paper. II) Calculate the value of resistance from graph.
III) If the resistance is connected to a 9V battery for 1hr, calculate how much heat will be generated.​

Answer 1

Answer:

Plot of I vs V is shown in the figure.

Resistance=

Slope

1

From the graph, Slope=

3.4−1.6

1−0.5

=0.278 Ω

−1

R=1/0.278=3.6 Ω