Question text
35 The diagram shows a loudspeaker that is producing a sound. magnet N S loudspeaker coil of wire cone N A student writes four sentences about the loudspeaker. 1 There is a direct current in the coil of wire. 2 The current in the coil produces a changing magnetic field. 3 A force is produced on the coil of wire attached to the cone. 4 The cone spins around due to the force. Which sentences are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
35 The diagram shows a loudspeaker that is producing a sound.
magnet
N
S
loudspeaker
coil of wire
cone N
A student writes four sentences about the loudspeaker.
1 There is a direct current in the coil of wire.
2 The current in the coil produces a changing magnetic field.
3 A force is produced on the coil of wire attached to the cone.
4 The cone spins around due to the force.
Which sentences are correct?
A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
Select your answer: