IB Physics HL D 4 5 Hl Rotating Coil Emf Questions

Solve HL rotating-coil emf questions by connecting changing magnetic flux, sinusoidal voltage, phase, rms values, angular speed and coil orientation.

Exam points

use changing flux linkage to explain and calculate the sinusoidal emf of a rotating coil, including peak value, angular speed, turns, area and magnetic field
relate magnetic flux and induced emf in time, identifying their phase relationship and interpreting sine or cosine graphs for rotating coils
determine rms emf, frequency, period, rotation angle and axis from generator graphs, coil orientation and induced-emf waveforms

Learn this topic

Study D.4.5 (HL)—Rotating-coil emf conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

[Maximum number: 2]

A coil is rotating in a region of magnetic field with angular speed $12.56 \mathrm{rad} \mathrm{s}^{-1}$ . At t=0, the field is parallel to the surface of the coil.

Figure for Question IB Physics HL D 4 5 Hl Rotating Coil Emf Questions question 1 — IB Physics HL

Draw, on the axes, a graph to show the variation with time of the induced emf in the loop. (No numbers are required on the vertical axis.)
emf

All question bank results loaded

Learn this topic

IB Physics HL D 4 5 Hl Rotating Coil Emf Questions question 1