Question

the tendency to oppose the flow of electrons is

potential difference

current

voltage

resistance

question #17
current (amps) vs. voltage (volts)
the graph above relates the current to voltage data for a resistor. calculate the resistance

10 ohms

1.1 ohms

0.4 ohms

Explanation:

Step1: Recall resistance definition

Resistance opposes the flow of electrons.

Step2: Recall Ohm's law for graph calculation

Ohm's law is $R=\frac{V}{I}$. For a $V - I$ graph, resistance is the slope of the line.
Let's assume two points on the line from the graph: $(V_1, I_1)=(2,0.2)$ and $(V_2, I_2)=(4,0.4)$.
The slope $m = R=\frac{V_2 - V_1}{I_2 - I_1}=\frac{4 - 2}{0.4 - 0.2}=\frac{2}{0.2}=10$.

Answer:

First question: D. resistance
Second question: 10 ohms