cameroon gce advanced level 2025 electrical and electronic circuits 1

Based on the provided image, here is the extracted data, presented as a list of multiple-choice questions and their options.

1. Exclusive-OR (XOR) logic gates can be constructed from which other logic gates?
   • A. OR gates only
   • B. AND gates and NOT gates
   • C. AND gates, OR gates and NOT gates
   • D. OR gates and NOT gates
2. For maximum transfer of power, the internal resistance of the source should be
   • A. Equal to load resistance
   • B. Less than that of load
   • C. More than that of load
   • D. None of the above
3. The boolean function A+BC is a reduced form of:
   • A. AB+BC
   • B. (A+B)(A+C)
   • C. (A+C)B
   • D. (AB)+ABC
4. For the circuit of figure 1, the value of the current i is:
   • A. 2A
   • B. 0A
   • C. 1A
   • D. $\infty$ A
5. The average value of the voltage v(t) = 60 + 120sin($\omega$t + 90) is:
   • A. 0V
   • B. 120V
   • C. 60V
   • D. 75.84V
6. The active element in a circuit is?
   • A. Current source
   • B. Resistance
   • C. Inductance
   • D. Capacitance
7. The RMS value of the following current i(t) = 10 + 120sin($\omega$t + 90) is:
   • A. 0A
   • B. 10A
   • C. 120A
   • D. 94A
8. In the circuit of figure 2 the expression of the terminal voltage V$_{AB}$ is:
   • A. 0
   • B. 20/I$_{1}$
   • C. 10I$_{1}$
   • D. D${1}$ + D${2}$ $\times$ I$_{1}$
9. The average value of a constant (DC) voltage of 12V is:
   • A. 6V
   • B. 12V
   • C. 12/2​
   • D. 12$\times$$\sqrt{2}$
10. Series RLC resonance occurs when the total impedance of the circuit (Z) is:
    • A. Z=X$_{L}$
    • B. Z=R
    • C. Z=0
    • D. Z=X$_{C}$
11. The resistor of 7200 $\pm$ 5 % $\Omega$ has as colour bands:
    • A. Violet, red, red and gold
    • B. Yellow, red, black and gold
    • C. Red, violet, red and gold
    • D. Red, red, violet and gold
12. The average value of current or voltage can be measured by means of a/an:
    • A. Oscilloscope
    • B. Magneto-electric instrument
    • C. Ferro-magnetic instrument
    • D. Multimeter