Alternating Current
Class 12 · Alternating Current · Practice
Power & Power Factor — Previous-Year Questions
5 previous-year questions on Power & Power Factor, drawn from JEE Mains, JEE Advanced, NEET UG, and CUET papers. Every question carries a worked-out explanation.
Q1. A circuit draws 10 A rms at 220 V rms with phase angle 60°. Real power consumed:
JEE 2022Q2. Apparent power in the same circuit:
JEE 2021Q3. Power factor of a pure capacitor or pure inductor is:
JEE 2020Q4. For maximum power transfer in AC, the load impedance should:
JEE 2019Q5. Why do industries add capacitors in parallel with inductive loads?
JEE 2018Power & Power Factor previous-year questions from sciphylab (also known as SciPhy, SciPhy Lab, SciPhy Labs, Physics Lab). Class 12 physics practice for JEE Mains, JEE Advanced, NEET UG, AP Physics 1/2/C, SAT, and CUET-UG candidates.