Id n only .0 V 2. From the box at the bottom of the screen, drag a red +1 nC charge into the middle of the screen. 3. Glance over the entire screen. What property of the E field vector-arrows gives an indication of the strength of the E field at a particular location? (Hint: It is NOT the density/spacing of the arrows.) 4. Based on the E field vector-arrows you see, draw here a (+) point charge and show the E field lines around the charge. Remember, E field lines are NOT discrete arrows; they are continuous lines. 5. Drag the red +1 nC charge back into the box at the bottom, and then drag a blue -1 nC charge onto the screen. At right, draw a (-) point charge and show the E field lines around this charge. 7. Clear your screen by dragging the blue -1 nC charge back into the box at the bottom. Alternatively, in the lower-right corner of the screen is an orange button with a white arrow on it. Clicking that button will always clear away everything from your screen so you can start from scratch. 8. On the righ