EET 3086 Exam 2 QUESTIONS AND
CORRECT ANSWERS
A circuit consists of two opposing voltage sources: a VA of 11 V and a VB of 8 V. There are three
resistors: an R1 of 29 Ω, an R2 of 14 Ω, and an R3 of 9 Ω. One end of R1 is connected to the + side of
VA while one end of R2 is connected to the + side of VB. The remaining leads of R1 and R2 are
connected together along with one end of R3. The other end of R3 is connected to the negative end of
both VA and VB. The voltage across R1 is - CORRECT ANSWER 6.62 V
A 12-V voltage source with an internal resistance (RS) of 300 Ω is connected to a 60 Ω load (RL).
The voltage drop across the load (VL) is - CORRECT ANSWER 2V
Three resistors are in series across a 15-V source: R1 = 22 Ω, R2 = 120 Ω, and R3 = 380 Ω. A load
resistor is placed across R3. The value of VTH for the circuit is - CORRECT ANSWER 10.92
V
Two resistors are in parallel, an R2 of 140 Ω and an R3 of 470 Ω. The two parallel resistors are in turn
in series with a resistor, R1, of 220 Ω. One side of R1 is connected to the positive terminal of a 9-V
source. The other side is connected to the parallel circuit. The load, RL, is taken off of R3. What is the
Thevenin equivalent for the circuit? - CORRECT ANSWER VTH = 2.96 V, RTH = 72.38 Ω
A maximum power transfer occurs when the load resistance - CORRECT ANSWER equals the
source resistance
A bar magnet has fourteen lines of force cutting two square centimeters (2 cm2). Assuming that each
line of force represents 50 μWb of flux, the flux density for the magnet is - CORRECT ANSWER
3.5 T
If an iron bar has a value of μr = 300, and the flux density in the space surrounding the bar equals 3 ×
10-3 T, the flux density within the iron bar is - CORRECT ANSWER 0.9 T
That magnetic flux is directly proportional to magnetomotive force and inversely proportional to
reluctance is expressed by - CORRECT ANSWER Rowland's law
CORRECT ANSWERS
A circuit consists of two opposing voltage sources: a VA of 11 V and a VB of 8 V. There are three
resistors: an R1 of 29 Ω, an R2 of 14 Ω, and an R3 of 9 Ω. One end of R1 is connected to the + side of
VA while one end of R2 is connected to the + side of VB. The remaining leads of R1 and R2 are
connected together along with one end of R3. The other end of R3 is connected to the negative end of
both VA and VB. The voltage across R1 is - CORRECT ANSWER 6.62 V
A 12-V voltage source with an internal resistance (RS) of 300 Ω is connected to a 60 Ω load (RL).
The voltage drop across the load (VL) is - CORRECT ANSWER 2V
Three resistors are in series across a 15-V source: R1 = 22 Ω, R2 = 120 Ω, and R3 = 380 Ω. A load
resistor is placed across R3. The value of VTH for the circuit is - CORRECT ANSWER 10.92
V
Two resistors are in parallel, an R2 of 140 Ω and an R3 of 470 Ω. The two parallel resistors are in turn
in series with a resistor, R1, of 220 Ω. One side of R1 is connected to the positive terminal of a 9-V
source. The other side is connected to the parallel circuit. The load, RL, is taken off of R3. What is the
Thevenin equivalent for the circuit? - CORRECT ANSWER VTH = 2.96 V, RTH = 72.38 Ω
A maximum power transfer occurs when the load resistance - CORRECT ANSWER equals the
source resistance
A bar magnet has fourteen lines of force cutting two square centimeters (2 cm2). Assuming that each
line of force represents 50 μWb of flux, the flux density for the magnet is - CORRECT ANSWER
3.5 T
If an iron bar has a value of μr = 300, and the flux density in the space surrounding the bar equals 3 ×
10-3 T, the flux density within the iron bar is - CORRECT ANSWER 0.9 T
That magnetic flux is directly proportional to magnetomotive force and inversely proportional to
reluctance is expressed by - CORRECT ANSWER Rowland's law
