R1=5.0ohm R2=7.0ohm (a) The 6.0 ? resistor in the figure above carries a current
ID: 2276879 • Letter: R
Question
R1=5.0ohm R2=7.0ohm
(a) The 6.0?resistor in the figure above carries a current of 1.0A. Find the current through the 5.0ohm resistor.
Answer: 5.4A
(b) If the 3.0ohm resistor were replaced by a different resistor, which, if any, of the other resistors would carry the same current as before?
Answer: 5.0ohm
R1=5.0ohm R2=7.0ohm The 6.0?resistor in the figure above carries a current of 1.0A. Find the current through the 5.0ohm resistor. Answer: 5.4A If the 3.0ohm resistor were replaced by a different resistor, which, if any, of the other resistors would carry the same current as before? Answer: 5.0ohmExplanation / Answer
a)
Req = (6*3/9) + R2 ) || R1 = 9 || 5 = 45/14 Ohm
current i = V/Req = 14V/45
current in 5 Ohm = 9*i / 14 = 9V/45 = V / 5
current in R2 = V(14/45 - 1/5) = V / 9
current in 6 Ohm = 3*V/9 / 9 = V/27 = 1A
so, V = 27 Volt
current in 5 Ohm = 27/5 = 5.4 A
b)
5 Ohm because it is adjacent to V
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