Science (086) — AI-generated practice question

In a series circuit, the same current flows through all components, but the total potential difference (voltage) is shared (divided) among them.

This makes series arrangement unsuitable for domestic appliances because:

1. Different appliances need different voltages to operate correctly. In series, the supply voltage is split across each appliance, so no appliance gets the required voltage.
2. If one appliance is switched off or fails, the circuit breaks, and all other appliances stop working.
3. All appliances must operate at the same current, which is not practical since different appliances (e.g., refrigerator and ceiling fan) have different current requirements.

Thus, a series circuit cannot provide independent control or correct operating conditions for domestic appliances.

Source: Chapter 11 – Electricity, Section 11.6.1 (Resistors in Series)

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Examiners look for three specific disadvantages clearly linked to the properties of series circuits — shared voltage, same current, and circuit breaking on failure. Mention both the electrical property (what happens in series) and why it's a problem for appliances. Don't just state facts — connect them to the real-life problem. This question often appears as Q18(c) in board exams; the answer should be concise but cover all three points to secure full 3 marks.