The three resistors in the figure below all have the same resistance. (a) When t

Question

The three resistors in the figure below all have the same resistance. (a) When the switch is closed, by what factor does the current in resistor 1 change?
I1, after I1, before =

(b) By what factor does the potential difference across resistor 2 change?
V2, after V2, before =

(c) By what factor does the current in resistor 2 change?
I2, after I2, before =
I1, after I1, before = V2, after V2, before = I2, after I2, before =
I1, after I1, before The three resistors in the figure below all have the same resistance. When the switch is closed, by what factor does the current in resistor 1 change?

Explanation / Answer

1) i=V/(1.5R) after

i= V/2R before

so change = 1.333

2)Vr2 = (0.5/1.5) V = V/3 after

Vr2 =V/2 before

change = 0.66

3) I2 after = V/3R

I2 before = V/2R

change = 0.66

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