Look at the symbol. which component in a circuit does it represent? a. resistor b. switch c. ac power source d. dc power source

Hey how did you manage to type such a big lab report

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.