PHYS 112 | GENERAL PHYSICS II
COMPREHENSIVE
STUDY GUIDE
Concepts | Formulas | Worked Examples | Exam Review
12 40+ 12
CORE UNITS KEY FORMULAS WORKED EXAMPLES
FULL-COURSE REVIEW
Electrostatics | Circuits | Magnetism | Induction | AC | EM Waves | Optics
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, How to use this guide
A structured path from concepts to calculations
This guide is organized around the core PHYS 112 themes used throughout the rest of this product series. Each unit combines
concise concept review, the formulas you should recognize quickly, one worked example, common mistakes, and quick checks.
• First pass: read concept boxes and identify every formula you can explain in words.
• Second pass: cover the worked solution and attempt the example independently.
• Third pass: use the quick checks to test recall without looking back.
• Before an exam: revisit the master formula sheet and the common-mistake boxes.
Important calculation habit
Always write units during substitution. Many physics errors come from hidden unit mismatches rather than
the underlying equation.
Course map
# Unit Focus
1 Electrostatics and Coulomb's Law Charge, force, superposition, conductors, and electrostatic equilibrium
2 Electric Fields and Gauss's Law Field vectors, field lines, flux, and symmetry
3 Electric Potential and Potential Energy Voltage, work, energy, and equipotential surfaces
4 Capacitance and Dielectrics Charge storage, networks, energy, and material effects
5 Current, Resistance, and DC Circuits Ohm's law, resistivity, power, and equivalent resistance
6 Kirchhoff's Rules, RC Circuits, and Circuit Junctions, loops, time constants, and multi-loop reasoning
Analysis
7 Magnetic Forces and Magnetic Fields Lorentz force, particle motion, wires, coils, and torque
8 Electromagnetic Induction and Inductance Flux changes, Faraday's law, Lenz's law, and inductors
9 AC Circuits, RLC Resonance, and RMS values, reactance, impedance, phase, and power
Transformers
10 Electromagnetic Waves Wave speed, spectrum, fields, intensity, and radiation pressure
11 Geometric Optics: Reflection, Refraction, Image formation and ray-based optics
Mirrors, and Lenses
12 Wave Optics: Interference, Diffraction, and Phase, fringes, diffraction patterns, and polarization
Polarization
PassPointPro | PHYS 112 Comprehensive Study Guide
, Master Formula Sheet
High-frequency equations to recognize and retrieve quickly
Electrostatics and fields
F = k |q1 q2|/r^2
E = F/q
E_point = k|Q|/r^2
Phi_E = E A cos(theta)
Phi_E = Q_enclosed/epsilon_0
Potential and capacitance
V = U/q
V_point = kQ/r
Delta U = q Delta V
C = Q/V
C = kappa epsilon_0 A/d
U_C = 1/2 C V^2
DC circuits
I = Delta Q/Delta t
V = IR
R = rho L/A
P = IV = I^2R = V^2/R
tau_RC = RC
Magnetism
F = |q|vB sin(theta)
r = mv/(|q|B)
F_wire = ILB sin(theta)
B_wire = mu_0 I/(2 pi r)
B_solenoid = mu_0 n I
tau = NIAB sin(theta)
PassPointPro | PHYS 112 Comprehensive Study Guide