50 40 30 20 10 0 For the connections shown above, which of the following stateme

Question

50 40 30 20 10 0 For the connections shown above, which of the following statements are true? A Bulb 1 is in parallel with Bulb 2 B Bulb 2 is in series with the ammeter C Bulb 5 is in parallel with Bulb 4 D Bulb 3 is in parallel with Bulb 4 E Bulb 3 is in series with Bulb 4 3. 0 .5 1.5 2 2.5 Current (Amps) A student measures the current through a light bulb as different voltages are applied. The results are graphed here. From this graph (the data represented by the squares), what is the resistance of the lamp? (show work) 1. In the same graph, data from another light bulb is plotted. From this information which light bulb has the greatest resistance? A the first bulb (solid circles) B the second bulb (open squares) 2. the resistances are the same for both.

Explanation / Answer

Question 3) answer) option C) bulb 3 is in parallel with bulb 4

Reason : bulb 3 and bulb 4 are said to be connected in parallel since they have the same potential difference

Question 1) Resistance is the slope of V - I graph by using the ohm's law

Resistance (R) = (y2 - y1)/(x2 - x1) = V/I

R = (20 - 0)/(0.7 - 0) = 28.57 ohms

Question 2) answer ) option b) the second bulb (open squares)

Reason : the slope of the second bulb (squares) from the V - I graph is more than the first bulb (circles)

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