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NCERT Class 10 Science Magnetic Effects of Electric Current: In-text questions (page 205) Solutions
AI-written, checked on 23 Oct 2026
Solutions written by Shishya, checked — not the board's official answers
Step-by-step working for every question of In-text questions (page 205) in NCERT's Class 10 Science book, chapter “Magnetic Effects of Electric Current”, written by Shishya. Each question is in our own short words; open the NCERT chapter for the exact wording and figures.
How these were checked: the solutions were drafted with AI and then read and corrected on 23 Oct 2026. Every numerical final answer is recomputed from the question's own numbers by a calculator check that runs before each release; proofs and explanations were read, not machine-checked. The NCERT textbook is the authority — if something here disagrees with it, follow the book.
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In-text (page 205) Q1
Name two safety measures commonly used in electric circuits and appliances.
- An electric fuse is connected in series in the circuit: it melts and breaks the circuit when too much current flows.
- Earthing: metal bodies of appliances are connected to the earth wire, so a leakage current goes to earth instead of through the user.
Answer: Electric fuse (or MCB) and earthing of appliances.
In-text (page 205) Q2
A 2 kW electric oven is used on a 220 V domestic circuit rated 5 A. What do you expect? Explain.
- Current drawn by the oven I = P ÷ V = 2000 W ÷ 220 V ≈ 9.09 A.
- The circuit is rated for only 5 A, so the oven draws much more current than the circuit can carry safely.
- The circuit gets overloaded: the fuse blows (or the MCB trips) and cuts off the supply; without a fuse the wires would overheat and could cause a fire.
Answer: The oven draws about 9.09 A, more than the 5 A rating, so the circuit is overloaded and the fuse blows.
In-text (page 205) Q3
What precautions avoid overloading domestic electric circuits?
- Do not connect too many appliances to one socket or circuit at the same time.
- Use appliances on circuits of the right current rating (high-power appliances on the 15 A power line).
- Keep a fuse or MCB of the correct rating in every circuit, and replace damaged insulation so wires cannot touch.
Answer: Avoid connecting too many appliances to a single socket, use correctly rated circuits and fuses/MCBs, and keep wiring insulation in good condition.
Other exercises in this chapter
- In-text questions (page 200) — 3 questions
- In-text questions (page 201) — 3 questions
- In-text questions (page 203) — 3 questions
- End-of-chapter exercises — 9 questions
← Magnetic Effects of Electric Current: notes, practice and all exercises
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