Created by StemPy LabAn alternator has one coil on its rotor, and its output reverses times every second. At what rate must the rotor be driven, in revolutions each minute?
← All Quizzes
← **Assertion (A):** The emf in a coil that turns in a uniform field is zero when the flux through it is greatest. **Reason (R):** The emf in the coil is proportional to the flux through it.Match the quantity in List I with the expression in List II. **List I:** (A) peak emf of a generator, (B) time constant of an LR circuit, (C) energy stored in an inductor, (D) emf of a moving rod. **List II:** (1) Blv, (2) 1/2LI², (3) NBAω, (4) L/R. →
Discussion (0)
Log in to join the discussion.
Loading…