Show all work in detail Part A Determine the equivalent resistance of the circui
ID: 1424206 • Letter: S
Question
Show all work in detail
Part A
Determine the equivalent resistance of the circuit shown in the figure. (Figure 1)
Express your answer to three significant figures and include the appropriate units.
Part B
Determine the voltage across 820 resistor.
Express your answer to two significant figures and include the appropriate units.
Part C
Determine the voltage across 960 resistor.
Express your answer to two significant figures and include the appropriate units.
Part D
Determine the voltage across 680 resistor.
Express your answer to two significant figures and include the appropriate units.
Part B
Determine the voltage across 820 resistor.
Express your answer to two significant figures and include the appropriate units.
Explanation / Answer
PART A)
820 ohm, 680 ohm in parallel equivallent to Req1 = (820*680)/(820+680) = 371.733 ohm
Req1 , 960 ohm in series equivallent to Req = 960 + 371.733= 1331.733 ohm
SO EQUIVALLENT RESISTANCE OF THE CIRCUIT = 1331.733 ohm
PART B) current in the circuit exiting froem battery i = 12/1331.733 = 9.01 mA
so current through 820 ohm resistance = 680*i/(680 +820) = 4.08 mA
SO VOLTAGE ACROSS 820 ohm RESISTANCE = 4.08*10^-3*820 = 3.345 v
PART C) current through the 960 ohm resistance = 9.01 mA
SO VOLTAGE ACROSS 960 ohm resistance = 9.01*10^-3*960 = 8.649 v
PART D) current through the 680 ohm resistance = 9.01 mA - 4.08 mA = 4.93 mA
SO VOLTAGE ACROSS 680 ohm RESISTANCE = 680*4.93*10^-3 = 3.352 v