1. Problem (ii): Given the time $T = 2$ ms, find the frequency $f$ of the signal.
Frequency and time period are related by the formula:
$$f = \frac{1}{T}$$
Since $T = 2$ ms = $2 \times 10^{-3}$ s,
$$f = \frac{1}{2 \times 10^{-3}} = 500 \text{ Hz}$$
So, the frequency of the signal is 500 Hz.
2. Problem (iii): Given vertical scale = 1 V/div and waveform spans 3 divisions, find the peak voltage $V_p$.
Peak voltage is calculated by multiplying the vertical scale by the number of divisions:
$$V_p = 1 \text{ V/div} \times 3 \text{ div} = 3 \text{ V}$$
So, the peak voltage is 3 V.
3. Problem (c)(i): What is a multimeter?
A multimeter is an electronic measuring instrument that combines several measurement functions in one unit, typically measuring voltage, current, and resistance.
Advantages of a multimeter:
- It is versatile and can measure multiple electrical quantities.
- Portable and easy to use for troubleshooting.
Disadvantages of a multimeter:
- Limited accuracy compared to specialized instruments.
- Can be damaged if used improperly or on high voltage/current.
4. Problem (c)(ii): List two limitations of a multimeter.
- Cannot measure very high frequencies accurately.
- Limited to measuring basic electrical parameters; cannot measure complex signals like waveform shapes or phase angles.
Signal Frequency Voltage
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