Question map
Not attempted Correct Incorrect ★ Bookmarked
Loading…
Q80 (NDA-II/2016) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Electricity and magnetism Answer Verified

The property of electric current which is applicable in the fuse wire is

Result
Your answer: —  Â·  Correct: C
Explanation

The electric fuse operates based on the heating effect of electric current, also known as Joule heating [2]. When current flows through a conductor, it encounters resistance, converting electrical energy into thermal energy. A fuse wire is specifically designed with a material having an appropriate melting point [3]. Under normal conditions, the heat generated is dissipated; however, during a short-circuit or overloading, the current abruptly increases [2]. This surge causes the temperature of the fuse wire to rise rapidly until it reaches its melting point [3]. Once the wire melts, the circuit is broken, stopping the flow of electricity and protecting appliances from damage [3]. While current also exhibits magnetic and chemical effects, these are utilized in devices like electromagnets and batteries rather than safety fuses [1].

Sources

  1. [1] Science ,Class VIII . NCERT(Revised ed 2025) > Chapter 4: Electricity: Magnetic and Heating Effects > Snapshots > p. 58
  2. [2] Science , class X (NCERT 2025 ed.) > Chapter 12: Magnetic Effects of Electric Current > 12.4 DOMESTIC ELECTRIC CIRCUITS > p. 205
  3. [3] Science , class X (NCERT 2025 ed.) > Chapter 11: Electricity > 11.7.1 Practical Applications of Heating Effect of Electric Current > p. 190
How others answered
Each bar shows the % of students who chose that option. Green bar = correct answer, blue outline = your choice.
Community Performance
Out of everyone who attempted this question.
50%
got it right
✓ Thank you! We'll review this.

SIMILAR QUESTIONS

CDS-I · 2018 · Q11 Relevance score: 4.82

Working of safety fuses depends upon 1. magnetic effect of the current 2. chemical effect of the current 3. magnitude of the current 4. heating effect of the current Select the correct answer using the code given below.

NDA-I · 2019 · Q70 Relevance score: 2.04

A fuse wire must be

NDA-I · 2014 · Q18 Relevance score: 1.43

A fuse is used in an electric circuit to

NDA-I · 2011 · Q10 Relevance score: 0.98

The material used for electric fuse is an alloy of tin and lead. This alloy should have:

NDA-II · 2012 · Q10 Relevance score: 0.49

When an electrical safety fuse is rated (marked) as 16 A, it means it