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Science (086) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [1] straightforward exam-ready
The potential difference across a conductor is doubled while its resistance remains unchanged. The current through it will: (A) be halved (B) remain the same (C) be doubled (D) become four times
  1. A be halved
  2. B remain the same
  3. C be doubled
  4. D become four times
Generated by claude-sonnet-4-6 · 2026-06-26 01:08 · grounding rag
Model Answer

(C) be doubled

By Ohm's law, $I = V/R$. If V is doubled and R remains unchanged, the current $I$ also doubles.

Source: Chapter 11, Section 11.4 (Ohm's Law)

Explanation

Ohm's law states $I = V/R$. Current is directly proportional to potential difference when resistance is constant. So doubling V doubles I. Examiners expect you to state the law and apply it directly — one line is sufficient for 1 mark.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.