Physics Module 6 Questions Apr 2026

The magnetic flux through a coil of area 0.5 m² in a uniform 0.2 T field perpendicular to the coil is: A) 0.1 Wb B) 0.4 Wb C) 0.5 Wb D) 1.0 Wb

A proton (q = 1.6 × 10⁻¹⁹ C, m = 1.67 × 10⁻²⁷ kg) moves at 2.0 × 10⁶ m/s perpendicular to a 0.5 T magnetic field. Calculate the radius of its circular path. Section C – Extended Response (10 marks) Answer in full sentences. Diagrams may help.

Describe the energy conversion in: a) A DC motor b) An AC generator physics module 6 questions

An AC generator produces a sinusoidal voltage. Doubling the rotation speed will: A) Double frequency, double peak voltage B) Double frequency only C) Halve frequency, double voltage D) No change

Explain why a transformer only works with AC voltage, not DC. The magnetic flux through a coil of area 0

A square coil of side 0.2 m and 50 turns is placed perpendicular to a magnetic field. The field changes uniformly from 0.1 T to 0.5 T in 0.4 s. Calculate: a) The change in magnetic flux through one turn. b) The average induced EMF in the coil.

Lenz’s law is a consequence of which conservation principle? A) Conservation of charge B) Conservation of energy C) Conservation of momentum D) Conservation of mass Diagrams may help

Explain how an eddy current brake works, referring to Lenz’s law and energy conservation. Include one practical application.