PART A The figure shows a graph of the power dissipated in a resistor as a funct

Question

PART A
The figure shows a graph of the power dissipated in a resistor as a function of the resistance. What quantity does the slope of this graph represent?

a)the current in the resistor

b)the potential difference across the resistor

c)the resistivity of the resistor

d)the square of the current in the resistor

e)the reciprocal of the current in the resistor

PART B

For the graph shown in the figure, what physical quantity does the slope of the graph represent for a dc circuit?

b) potential

c)(potential)2

d)1/(resistance)

e) resistance

b) potential

c)(potential)2

d)1/(resistance)

e) resistance

Explanation / Answer

Solution:

a) slope of the R-P graph

=> slope = P / R

=> slope = I^2 * R / R

=> Slope = I^2

so Slope is the square of the current through the resistor. option(d)

b) In dc circuit.

Using slope = i /P

slope = I / V * I

slope = 1/V

=> slope = 1 / potential option A should be right.

please rate thanks.

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