HSC Physics Question Bank with Important Questions – AC Circuits 2026
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The Maharashtra Higher Secondary Certificate (HSC) examination for 2026 is approaching, and Physics remains one of the most challenging yet scoring subjects for Science students. Among the various chapters, Chapter 13: AC Circuits holds a significant weightage of 6 marks (with options). To excel, students must rely on structured resources like the HSC Physics Question Bank with Important Questions – AC Circuits 2026.
This blog serves as a comprehensive guide, consolidating official data from the Maharashtra State Board of Secondary and Higher Secondary Education (MSBSHSE) and SCERT Maharashtra (MAA). Whether you are looking for repeated previous year questions (PYQs), derivation names, or official links for the "Prashnapedhi," we have you covered.
HSC Physics Question Bank with Important Questions – AC Circuits 2026: Chapter Overview
The AC Circuits chapter is pivotal because it bridges the gap between basic electricity and complex electromagnetic applications, including those used in modern medical equipment like MRI machines and ECG monitors. For the 2026 board exams, the paper pattern remains focused on a balanced mix of theory, derivations, and numerical problems.
Weightage Distribution for AC Circuits (2026)
According to the latest MSBSHSE evaluation scheme:
Weightage Without Option: 4 Marks
Weightage With Option: 6 Marks
Difficulty Level: 50% Average, 30% Easy, 20% Difficult.
Official Links for Maharashtra Board Question Banks
The most reliable way to practice is through the official channels. The SCERT Maharashtra and MSBSHSE release updated question banks (Prashnapedhi) to help students familiarize themselves with the question format.
MSBSHSE Official Website (Question Paper Section): mahahsscboard.in – Access archives of actual board papers from March and July sessions.
SCERT Maharashtra Website (Question Bank Access): www.maa.ac.in – Download the official PDF for Physics Chapter 13.
Pro Tip: Focus on the "Prashnapedhi" section on the MAA portal. These questions are often curated by the same subject matter experts who set the final board papers.
High-Priority Important Questions for AC Circuits 2026
Analyzing the past 10 years of Maharashtra Board papers (PYQs), certain questions have a high frequency of repetition. We have categorized them into different sections as per the HSC Physics Question Bank with Important Questions – AC Circuits 2026.
Section A: MCQs & Very Short Answers (1 Mark Each)
Define the Average Value of alternating current over a complete cycle.
Define Inductive Reactance and Capacitive Reactance.
What is the Power Factor of a purely resistive circuit?
State the condition for RMS Current.
What is the Q-factor (Quality Factor) of a circuit?
Section B: Short Answer I (2 Marks Each)
Distinguish between Resistance and Reactance.
Explain the concept of Wattless Current.
Show that the average power dissipated in a purely inductive circuit over a complete cycle is zero.
Define Impedance and state its SI unit.
Explain LC Oscillations in brief.
Section C: Short Answer II (3 Marks Each)
Draw a neat labeled Phasor Diagram for a purely capacitive circuit.
Explain the application of AC to a Pure Inductor and derive the expression for current.
Obtain an expression for the Average Power dissipated in a series LCR AC circuit.
Explain the characteristics of Series Resonance in an LCR circuit.
Explain the Sharpness of Resonance and Bandwidth.
Section D: Long Answer (4 Marks Each)
Derive the expression for Impedance of a series LCR circuit using the phasor diagram method.
Explain Parallel Resonance and state the conditions for current and impedance at resonance.
Derive the equation for RMS Value for Alternating Current and EMF.
Essential Formula for Quick Revision
In the HSC Physics Question Bank with Important Questions – AC Circuits 2026, numericals contribute nearly 30% of the marks. While you must solve the textbook examples, ensure you have these formula names at your fingertips:
Average Value of AC (Half Cycle)
Root Mean Square (RMS) Value
Inductive Reactance Relationship
Capacitive Reactance Relationship
Impedance of LCR Series Circuit
Phase Angle (Phase Difference)
Resonant Frequency (Series and Parallel)
Power Factor of AC Circuit
Quality Factor (Q-factor)
Peak Value and Instantaneous EMF Relationship
Medical Significance of AC Circuits
It is important for students to realize the real-world application of what they study. AC Circuits are the backbone of modern healthcare technology.
ECG (Electrocardiogram): Uses filters based on AC circuit principles to remove noise and capture heart signals.
MRI Machines: Utilize the concept of Resonance and high-frequency AC to create detailed images of the human body.
Defibrillators: Rely on capacitor discharge cycles within an AC/DC conversion framework to save lives during cardiac arrests.
How to Use the HSC Physics Question Bank for Maximum Marks
To rank high and secure top marks in 2026, follow this "Testbook-style" preparation strategy:
Solve the SCERT Question Bank First: 60-70% of the board paper concepts are mirrored from the official "Prashnapedhi."
Focus on Diagrams: In Physics, a neat phasor diagram or circuit diagram often carries 1 full mark. Never skip them.
Master the Derivations: The LCR series impedance and average power derivations are "sure-shot" long-answer questions.
Practice Numericals Daily: Chapter 13 numericals are usually direct applications of the formulas.
Conclusion
Mastering the HSC Physics Question Bank with Important Questions – AC Circuits 2026 is the most efficient way to secure your 6 marks in this chapter. By focusing on the official SCERT resources, practicing phasor diagrams, and memorizing the core formula names, you will be well-prepared for the 2026 Maharashtra Board exams. Stay consistent, practice the numericals, and refer to official sources for any last-minute updates.
Frequently Asked Questions (FAQs)
Q1: Where can I download the official HSC Physics Question Bank with Important Questions – AC Circuits 2026?
Ans: You can download the official question bank (Prashnapedhi) from the SCERT Maharashtra website at www.maa.ac.in. It contains chapter-wise important questions specifically designed for the 2026 board exams.
Q2: Is the AC Circuits chapter difficult for the HSC Board?
Ans: AC Circuits is considered a moderately difficult chapter. However, with the HSC Physics Question Bank with Important Questions – AC Circuits 2026, students can focus on high-yield topics like LCR resonance and power factor to score easily.
Q3: How many marks are allotted to AC Circuits in the 2026 Physics paper?
Ans: The chapter carries 4 marks without options and 6 marks with options. It usually includes one 3-mark or 4-mark derivation and one or two MCQs/VSAs.
Q4: Are previous year questions (PYQs) enough to pass Physics?
Ans: While PYQs are excellent for understanding the pattern, it is highly recommended to solve the official HSC Physics Question Bank with Important Questions – AC Circuits 2026 released by the board to cover any new syllabus adjustments.
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