cameroon gce intermediate level 2025 electronic circuits 1

1. The Thevenin’s equivalent voltage isA The same as the load voltageB Equal to the source voltage

   C Equal to the input voltage

   D The open circuit voltage

2. If in a linear load the resistance increases while the supply voltage remains constant, we shall register a(n)A increase in powerB decrease in current

   C constant current

   D increases in current

3. The Norton’s equivalent current is theA short circuit currentB current through the load

   C open-current from the source

   D Open load current

4. Which of the following is the current labeled ‘I’ in figure 1?Figure 1A 2A

   B 1A

   C 13A

   D -2A

5. How many branches are in the circuit of figure 1?A 9B 5

   C 7

   D 11

6. Maximum power is transferred to the load when theA internal resistance of the voltage source is equal to the load resistanceB circuit current is very high

   C load resistance is equal to zero

   D internal resistance is very high

7. What is the equivalent resistance of the circuit in figure 2?Figure 2A 15kΩ

   B 10kΩ

   C 20kΩ

   D 25kΩ

8. Which of the following is the value of the current labeled I in the circuit of figure 2A 4mAB 1mA

   C 2mA

   D 0.5mA

9. If the reactance of a capacitor is 10kΩ when an ac source of frequency 400Hz is applied across it, what is the capacitance of the capacitor?A 39.8μFB 3.98nF

   C 3.98μF

   D 39.8μF

10. Two capacitors, C1 and C2, are connected in series and each have capacitance 10μF and 47μF respectively. If the charge in C1 is 10mC, what is the charge in C2?A 47mCB 57mC

    C 37mC

    D 10mC

11. The barrier potential of the diode in figure 3 is 0.6V. The current flowing through R2 isFigure 3A 5mA

    B 4.4mA

    C 0.6mA

    D 2.2mA

IL 2025 ELECTRONIC CIRCUITS 1