Explanation: The amplitude of the voltage induced in a conductor is directly determined by Faraday's Law of Induction, which states that the induced electromotive force (EMF) is proportional to the rate at which the conductor cuts magnetic lines of force. A) **Flux density:** A stronger magnetic field (higher flux density) means more magnetic lines per unit area. When a conductor moves through a denser field, it cuts more lines of force per unit time, resulting in a higher induced voltage. B) **Velocity:** Moving the conductor faster through a magnetic field means it cuts more magnetic lines of force per unit time, leading to a proportionally higher induced voltage. C) **The angle at which the conductor cuts:** The maximum voltage is induced when the conductor cuts the magnetic lines perpendicularly (90 degrees). If it moves parallel to the lines (0 degrees), no lines are cut, and no voltage is induced. At other angles, the induced voltage is proportional to the sine of the angle, representing the effective rate of cutting. Since all three factors directly influence the rate at which the conductor intersects magnetic flux, they collectively determine the amplitude of the induced voltage.