Problemas
20.) The following question contains the word EXCEPT.Please read the question carefully and look for the choice that could NOT cause the described studion. All of these use electromagnetism, EXCEPT: A. photo cell sensor. OB. ignition coils. C. power door locks. OD. washer pumps.
Roztwór
Ricardo
experto · Tutor durante 3 años
4.7
(296 Votos)
Respuesta
The correct answer is 'D'.
Explicación
## Step 1The problem is asking us to identify the option that does not use electromagnetism. Electromagnetism is a branch of physics that deals with the study of electric and magnetic fields and their interactions.## Step 2Let's analyze each option:### A. Photo cell sensorA photo cell sensor uses the photoelectric effect, which is a phenomenon in electromagnetism. Therefore, this option uses electromagnetism.### B. Ignition coilsIgnition coils use electromagnetic induction to convert low-voltage power from the car's battery to the high-voltage needed to ignite the fuel. Therefore, this option uses electromagnetism.### C. Power door locksPower door locks use an electric motor to open and close the doors. This motor operates on the principles of electromagnetism. Therefore, this option uses electromagnetism.### D. Washer pumpsWasher pumps are typically mechanical devices that use hydraulic pressure to operate. They do not rely on electromagnetism. Therefore, this option does not use electromagnetism.