Eee 241 Complete Exam Review With Full Solutions

EEE 241 COMPLETE EXAM REVIEW WITH
FULL SOLUTIONS

●● Resistance (total parallel)
Answer: 1/R = 1/R1 + 1/R2 + 1/R3...


●● Capacitance (total series)
Answer: 1/C = 1/C1 + 1/C2 + 1/C3...


●● Capacitance (total parallel)
Answer: C = C1 + C2 + C3...


●● Charge on a capacitor at a certain time t
Answer: Q = CV(1-e^(-t/RC))


●● Current of a capacitor at a certain time t
Answer: (V/R)(e^(-t/RC))


●● Current of an inductor at a certain time t
Answer: (V/R)(e^(-tR/l))


●● Lorenz Law

,Answer: F = Fe + Fb


●● Magnetic Force
Answer: Fb = q(V x B)


●● Torque on a coil in a magnetic field
Answer: T = u x b = NIAB


●● Magnetic Force of a Wire
Answer: Fb = BIL


●● Ampere's Law
Answer: B*A = u0 * I(enclosed)


●● Magnetic field of a circle
Answer: (u0 * I(enclosed)) / 2 pi r


●● Magnetic Force between two wires
Answer: (Ia * Ib *u0 * L) /2 pi r


●● If the currents of two parallel wires are traveling in the same
directions which way is the force acting on the two wires

, Answer: attractive / towards each other


●● If the currents of two parallel wires are traveling in the opposite
directions which way is the force acting on the two wires
Answer: repulsive / away from each other


●● Magnetic Field of a Solenoid
Answer: B = u0 * I * N/l


●● Magnetic Field of a Toroid
Answer: B = (u0 * N * I) / 2 pi r


●● Magnetic Flux
Answer: Flux = B * A


●● Magnetic Coil Flux
Answer: N * B * A * cos(theta)


●● Induced EMF
Answer: -dflux / dt


●● Displacement Current