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PLEASE DO NOT WRITE ON THIS TEST! 304 ID: C Circuits, Magnetism, and Induction Test Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Under which of the following conditions is the net magnetic force on a charged particle equal to zero? when the particle is stationary b when the particle is moving parallel to the magnetic field when the particle is not charged d all of the above What happens when the switch is closed in the circuit shown above? The lamp lights because current from the battery flows through the lamp. Current from the battery flows through the resistor. Current from the battery flows through both the lamp and the resistor. d The lamp goes out, because the battery terminals connect to each other. 3. Which of the following statements about Earth's magnetic field is true? The geographic North Pole of Earth and Earth's magnetis north pole are at the same location. b. The geographic South Pole of Earth and Earth's magnetic north pole are relatively close to each other. The north needle of a compass always points to the geographic North Pole of Earth. d. The north needle of a compass points to Earth's magnetic north pole. 4. Where is the magnitude of the magnetic field around a permanent magnet greatest? a. The magnitude is greatest close to the poles. b. The magnitude is greatest far from the poles The magnitude is equal at all points on the field d The magnitude is greatest halfway between poles