Question
(a) If the emf of a coil rotating in a magnetic field is zero at $t = 0$, and increases to its first peak at $t = 0.100 \textrm{ ms}$, what is the angular velocity of the coil? (b) At what time will its next maximum occur? (c) What is the period of the output? (d) When is the output first one-fourth of its maximum? (e) When is it next one-fourth of its maximum?
1. $15700 \textrm{ rad/s}$
2. $0.500 \textrm{ ms}$
3. $0.400 \textrm{ ms}$
4. $16.1 \textrm{ }\mu \textrm{s}$
5. $1.84 \times 10^{-4} \textrm{ s}$
Solution Video