Question 34
Question 34 of 40
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No letter options?
Older MCQs might not have the typical A, B, C, D choices. They have choices 1, 2, 3, and a combination of them is the answer. Below is the key that maps such combinations to the answer.
A 1, 2 and 3 are correct
B 1 and 2 only are correct
C 2 and 3 only are correct
D 1 only is correct
Topics Tested
4. Electricity and magnet...
4.5.2. The a.c. generator

Sketch and interpret graphs of e.m.f. against time for simple a.c. generators and relate the position of the generator coil to the peaks, troughs and zeros of the e.m.f.

4. Electricity and magnet...
4.2.4. Resistance

Sketch and explain the current-voltage graphs for a resistor of constant resistance, a filament lamp and a diode

4. Electricity and magnet...
4.5.6. The transformer

State the advantages of high-voltage transmission