The candidates were expected to connect the circuit as shown, measure and record the current (mA) and voltages V1 and V2 (V), evaluate some quantities and verify Kirchhoff’s Current and Voltage Laws.
The expected answers were:
Table 1
R2(kΩ) |
V1(V) |
V2(V) |
I1(mA) |
I2 = (A) |
I3 = (A) |
V1+V2 (V) |
2.2 |
7.021 |
1.979 |
1.501 |
0.899 |
0.599 |
9.000 |
4.7 |
6.367 |
2.625 |
1.361 |
0.558 |
0.795 |
8.992 |
The Chief Examiner reported that the candidates showed good knowledge of components’ connection but were inadequate in the manner the soldering was done.