1. A 30 mA current source with an internal resistance ( R S ) of 300 ? is connec
ID: 2988875 • Letter: 1
Question
1. A 30 mA current source with an internal resistance (RS) of 300 ? is connected to a 600 ? load (RL). The voltage drop across the load (VL) is
8 V
12 V
6 V
3 V
2. A 15-V voltage source has an internal resistance (RS) of 80 ?. The equivalent current source produces
18.8 mA
5.33 mA
120 mA
188 mA
3. The load analysis of a circuit is an analysis that provides a means of predicting how the circuit will respond to a change in load
power
voltage
current
resistance
4. Thevenin's theorem states that any resistive circuit or network can be represented as a
current source in series with a source voltage
current source in series with a source resistance
voltage source in series with a source resistance
voltage source in series with a loop resistance
5. A 12-V voltage source with an internal resistance of 100 ? is connected to a 20 ? load. The Norton current (IN) is
120 mA
600 mA
100 mA
1 A
6. If a magnet has eight lines of force, the magnetic flux is given as
8 Wb
8 SI
8 ?Wb
8 Mx
7. If an iron bar has a value of ?r = 500, and the flux density in the space surrounding the bar equals 5 10-3 T, the flux density within the iron bar is
5 T
500 T
25 T
2.5 T
8. Materials that have high permeability are known as
paramagnetic
diamagnetic
triomagnetic
ferromagnetic
9. A coil with 140 turns, carrying 40 mA has
7.2 A ? t
7,200 A ? t
5.6 A ? t
5,600 A ? t
10. Flux density is
A. also known as permeability
B. measured in units of Maxwells
C. measured in units of Webers
D. a measure of the number of lines of magnetic force per unit area
A.8 V
B.12 V
C.6 V
D.3 V
Explanation / Answer
1 : OPTION C
2 .OPTION D
3 OPTION D
4 OPTION C
5. OPTION A
6 . OPTION A
7 OPTION D
8 OPTION D
9 OPTION C
10 OPTION D
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