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Physics - Current Electricity

Practise 8 IAT (IISER) previous year questions on Current Electricity, compiled from papers spanning 2017 to 2023. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty IAT (IISER) tests.

Current Electricity has been asked in 5 of the 9 years of IAT (IISER) papers analysed (2017–2026), with 8 questions in all. 25% of them were easy, 63% moderate and 13% tough. Most of its questions came from 2017, with 3 questions that year. In the last three years (2023–2026) it had 2 questions across 3 papers, about 0.7 per paper.

The chapter's 5 topics are not weighted equally: Combination of Resistances (3 questions, 38%), Kirchoffs Laws (2 questions, 25%), and Resistance and Resistivity (1 question, 13%) have been asked the most. Combination of Resistances has also led over the last five years, with 1 question. Combination of Resistances has produced the most tough questions (1).

  1. 1A current flows through a cylindrical cable of length and uniform cross-sectional area . The power dissipated due to the current is . The ca2023Electric Power and Heating Effect of Current
  2. 2What is the effective resistance between A and B in the circuit shown below?2023Combination of Resistances
  3. 3In the given circuit each of the resistors is of resistance and each of the capacitors has capacitance. What is the charge in the capacitor 2022Kirchoffs Laws
  4. 4What is the equivalant resistance between the points A and B in the figure?2020Combination of Resistances
  5. 5In the circuit shown, what is the approximate current passing through the resistor ?2018Kirchoffs Laws
  6. 6The current through the resistor in the given circuit is2017Combination of Resistances
  7. 7The dimension of , where is the resistance and is the capacitance, is the same as that of2017Resistance and Resistivity
  8. 8A metal, whose temperature coefficient of resistivity is , is heated from to . By what factor does the mobility of electrons in the metal ch2017Electric Current and Drift of Electrons

Frequently Asked Questions

1.How many questions are available for Current Electricity?

This chapter includes 8 questions compiled from IAT (IISER) papers spanning 2017 to 2023.

2.Are these questions only from IAT (IISER), or from other exams too?

These are IAT (IISER) questions specifically for the Current Electricity chapter. Questions from other exams like JEE Main or NTA Abhyas (JEE Main) are organised separately under their respective exam sections.

3.Is Current Electricity an important chapter for IAT (IISER) Physics?

Current Electricity has appeared in 5 of the 10 years of IAT (IISER) papers covered here, with 8 questions across 5 papers - about 2 per paper it appears in.

4.What is the difficulty level of Current Electricity questions in IAT (IISER)?

Of the 8 questions analysed for this chapter, 25% are easy, 63% moderate and 13% tough. 2017 had the most, with 3 questions.

5.Which topics in Current Electricity should I focus on?

These topics have carried the most weightage in Current Electricity:

  • Combination of Resistances - 3 questions (38%)
  • Kirchoffs Laws - 2 questions (25%)
  • Resistance and Resistivity - 1 question (13%)
  • Combination of Resistances has produced the most tough questions (1).
6.Is Current Electricity's weightage in IAT (IISER) going up or down?

Across all 5 papers analysed, Current Electricity has averaged about 1.6 questions per paper. In the last three years (2023–2026), that average has fallen, at about 0.7 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.