UNIT 12: ALTERNATING CURRENT

Alternating Current is a core chapter within the 20% Physics allocation of your 36-question paper in the MDCAT exam.

What this chapter covers:

• Phase of Alternating Current, including how phase lag and phase lead occur in AC circuits
• AC through a Resistor
• AC through a Capacitor
• AC through an Inductor
• Electromagnetic waves, spanning the spectrum from radio waves to Gamma rays

This chapter blends conceptual understanding with calculation-based problem solving, requiring clear grasp of phase relationships and reactance behavior alongside numerical work on impedance, resonance, and power. Given this mix, it spans the full difficulty range the PMDC guideline describes, from straightforward definitional recall to moderate and genuinely difficult multi-step circuit calculations.

Why this practice set helps:

• Covers every subtopic the PMDC curriculum identifies, plus the supporting concepts textbooks present alongside them
• Every question includes a full explanation of why the correct answer is right and why each other option is wrong
• Built to help you learn faster than passive reading, with nothing the exam may draw from left untouched

Work through this set attentively, and you build both the conceptual clarity on phase behavior and the calculation speed this chapter demands.