Analog circuits

profileshall02
analog.docx
Home>Engineering homework help>Electrical Engineering homework help>Analog circuits

1. (TCO 1) The engineering prefix symbol for 1 x 10+6 is (Points : 6)

       k.        M.        m.        ì.  

Question 2. 2. (TCO 1) A series circuit consists of a 100 , a 1 k and a 1 M resistor. What is the total resistance? (Points : 6)

       < 100        313.3                 510         > 1 M

Question 3. 3. (TCO 1) A 100 resistor is in parallel with a 220 resistor. The total resistance of the circuit is (Points : 6)

       < 100 .              >100  and <220 .        > 220 .        > 320 .

Question 4. 4. (TCO 1) Express 5000 kV as MV. (Points : 6)

       0.005 MV        5.0 MV        50 MV        50,000 MV

Question 5. 5. (TCO 1) What is the result of 250 mV/50 µ V? (Points : 6)

       5        50               500        5,000  

Question 6. 6. (TCO 1) A series circuit has a voltage supply of 6 V and a resistor of 2.0 kΩ. What is the amount of power dissipated by the resistor? (Points : 6)

       0.003 W               0.018 W             12 kW        72 kW

Question 7. 7. (TCO 1) A two resistor voltage divider consists of a 10 k and a 15 k ohm resistor, with the 10 k resistor connected to the voltage source and the 15 k resistor connected to ground. If the output voltage is 2.5 V, what is the value of the voltage source? (Points : 6)

       2.500 V        4.167 V        6.25 V        7.125 V

Question 8. 8. (TCO 1) Express 50 milliamp in engineering notation. (Points : 6)

       50 x 10-3 A        5.0 x 10-2 A        5.0 A        50 x 10+3 A

Question 9. 9. (TCO 1) An uncharged capacitor and resistor are connected in series with a 12 V source and a switch. What is the voltage across the capacitor after the switch is closed and the capacitor is fully charged? (Points : 6)

       0 V        6.0 V                               12 V                   24 V

Question 10. 10. (TCO 1) A perfect capacitor with C = 0.3 µF is connected in series to a current source with  and peak value of 10 V. What is the reactance of the capacitor? (Points : 6)

       132.6        25.13 m             −25.13        −132.6 m

Question 11. 11. (TCO 1) What is the relationship between current (I) and voltage (V) in a circuit consisting of a capacitor in series with a resistor? (Points : 6)

       I and V are in phase across the capacitor.        I leads V across the resistor.        V leads I across the capacitor.        I and V are in phase across the resistor.

Question 12. 12. (TCO 1) If the output impedance of a certain driving circuit is 50 - j10 , what value of load impedance will result in the maximum power to the load? (Points : 6)

       50 + j10        50 - j100        10 + j50        10 – j50

Question 13. 13. (TCO 1) Find the complex conjugate of 250 + j433  in polar form. (Points : 6)

       250 60        250 -60        500 60        500 -60

Question 14. 14. (TCO 1) A voltage source has the values VS = 25 V and RS = 5 . What are the values for the equivalent current source? (Points : 6)

       5 A, 5        25 A, 5        5 A, 125        5 A, 25

1. (TCO 1) In a high-pass filter, XC = 500 and R = 2.2 k. What is the output voltage (Vout) when Vin = 10 V rms? (Points : 6)

       8.25 12.8º        9.7512.8°        8.25 36.2º        11.22 28.5º

Question 2. 2. (TCO 1) The equation to calculate the cutoff frequency in an R-C filter is (Points : 6)

                           

Question 3. 3. (TCO 1) A sinusoidal voltage with a peak-to-peak value of 15 V is applied to an RC low-pass filter. If the capacitive reactance at the input frequency is zero, the output voltage is (Points : 6)

       0 V.         7.5 V peak-to-peak.        10.6 peak-to-peak.        15 V peak-to-peak.

Question 4. 4. (TCO 1) The output signal of a common-emitter amplifier is always (Points : 6)

       in phase with the input signal.        out of phase with the input signal.        larger than the input signal.        equal to the input signal.

Question 5. 5. (TCO 1) A common-source FET amplifier has an RD = 1.0 k. How much does the gain change when a load resistance of 1.0 k is capacitively coupled to the drain? (Points : 6)

       x ½        x 1                       x2        x4

Question 6. 6. (TCO 1) In which FET amplifier configuration is the gain less than unity? (Points : 6)

       common-source        common-gate        common-drain        common-base

Question 7. 7. (TCO 1) Determine Vout in the circuit below.                                 (Points : 6)

       2.68 mV        26.8 mV        2.68 V        3.74 V

Question 8. 8. (TCO 1) In a 5 V level detector circuit (Points : 6)

       the noninverting input is connected to +5 V.        the inverting input is connected to +5 V.        the input signal is limited to a 5 V peak value.        the input signal must be riding on a +5 dc level.

Question 9. 9. (TCO 1) If the least significant bit of an 8-bit binary-weighted resistor DAC connects to a 150 k resistor, what resistor value is required for the most significant bit? (Points : 6)

       1637.25        1171.875          18750        1275.25  

Question 10. 10. (TCO 1) Determine the output voltage for an op-amp comparator circuit with a non-inverting input reference voltage of + 2 VDC and an inverting input signal of – 1 VDC. The op amp reaches output saturation voltages of 13 V at the limits. (Points : 6)

       – 13 VDC        – 1 VDC        + 3 VDC        + 13 VDC

Question 11. 11. (TCO 1) A comparator circuit is an example of an op-amp operating in which type of input mode? (Points : 6)

       Single-ended        Double-ended        Inverting        Noninverting