Example 1 · difficulty 3/5
A series LCR circuit has R = 9 Ω, inductive reactance XL = 15 Ω and capacitive reactance XC = 3 Ω at the frequency of the applied source. The impedance of the circuit is:
- A. 27 Ω
- B. 15 Ω
- C. 21 Ω
- D. 18 Ω
2017 source guide · Physics
NEET 2017 Physics Alternating Current Questions
Use this page to connect the official 2017 paper with current Physics practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
What to master
phasors, reactance, impedance, resonance, power and transformers.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 4/5
A series LCR circuit contains an inductor of 8 H and a capacitor of 0.5 μF. The angular frequency of the source at which the circuit resonates is:
- A. 1000 rad s⁻¹
- B. 250 rad s⁻¹
- C. 500 rad s⁻¹
- D. 125 rad s⁻¹
Example 3 · difficulty 3/5
An ideal AC circuit consists of a source connected to a pure capacitor alone. The average power delivered by the source over one complete cycle is:
- A. zero, because the current leads the voltage by π/2 so cos φ = 0
- B. equal to Vrms × Irms, since the capacitor continuously stores energy
- C. equal to Vrms × Irms / 2, as the average of sin squared over a cycle is one-half
- D. non-zero and directly proportional to the capacitance C
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2017 Physics Alternating Current PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2017 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.