Problem 2 (12 points) Five resistors are connected as shown to an ideal power so

Question

Problem 2 (12 points) Five resistors are connected as shown to an ideal power source 2R. with emf E. The resistances are labelled as multiples of R. Points 1 and 2 are labelled points in the wires. Assumptions: 6R the power source has zero internal resistance the resistance of each resistor does not change. all wires have zero resistance. A. mine, in terms & and R, of the current through the r with resistance R. B. Is the electric potential greater at point 1 or point 2? Explain. points 1 C. Calculate the magnitude of the electric potential difference between brightest to least bright. Explain D. Imagine each of these resistons is actually a light bulb. Rank the bulbs from your reasoning.

Explanation / Answer

Here ,

a) for the net resistance

Rnet = R + (8R * 8R)/(8R + 8R)

Rnet = 5R

currnet in resistance R = E/(5R)

b) the potential at 2 is higher

c)

for the potential difference

magnitude of electric potential difference = E/(5R) * 0.50 * (6R - 2R)

magnitude of electric potential difference = 0.40*E

d)

for the brightness of bulbs

brightness ranking is

R < 2R = 2 R < 6R = 6R

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