Identify the correct statements among the following.
(A) Electrical appliances in a household are always connected in series.
(B) Electrical appliances in a household are always connected in parallel.
(C) The potential difference across different electrical appliances in households is not equal.
(D) The potential difference across different electrical appliances in households is equal.
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → (B) and (D) only
(A) Electrical appliances in a household are always connected in series. — Incorrect. In a series connection the same current would flow through every appliance, and switching one off would switch off all the others.
(B) Electrical appliances in a household are always connected in parallel. — Correct. In parallel each appliance works independently and can be switched on or off without affecting the others.
(C) The potential difference across different electrical appliances in households is not equal. — Incorrect. Appliances in parallel are connected across the same two supply lines.
(D) The potential difference across different electrical appliances in households is equal. — Correct. Every appliance in parallel gets the same potential difference, the mains voltage, whatever its current.