synapse

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When you purchase a 1.5V AA battery, the manufacturer guarantees that you have received a certain amount of ...
A. Electric field
B. Electric potential
C. Electric potential energy
D. Coulombs of charge


?? im stumped! ive been trying to figure this out forever :(
 

SamDC

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synapse said:
When you purchase a 1.5V AA battery, the manufacturer guarantees that you have received a certain amount of ...
A. Electric field
B. Electric potential
C. Electric potential energy
D. Coulombs of charge


?? im stumped! ive been trying to figure this out forever :(
I'll narrow it down to two:

B. Electric potential
D. Coulombs of charge

and choose:

D. Coulombs of charge

A battery is like a capacitor. Thus, Q = CV, where C is the capacitance and is determined by the geometry and composition of the battery. So, if C is constant and V is initially 1.5 V, then Q will be a fixed amount that depletes over time.
 

i77ac

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synapse said:
When you purchase a 1.5V AA battery, the manufacturer guarantees that you have received a certain amount of ...
A. Electric field
B. Electric potential
C. Electric potential energy
D. Coulombs of charge


?? im stumped! ive been trying to figure this out forever :(
voltage is a measurement of of electric potential, so my vote is B
 

internet

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the answer is B, a unit of voltage. how this is relevant to medicine i have no idea. but you must know it nonetheless. you must also be able to write a profound, insightful essay in 30 min. apparently doctors must be bloggers as well.
 

bobhagopian

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You guys went for the easy answer. SamDC is the only one who has been correct thus far. A battery IS a capacitor. Also, it happens to be the case that there's a pretty wide range of voltages that actually appear on 1.5V batteries. What's always the same is the total charge that has been loaded onto the battery.
 

juniper456

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bobhagopian said:
You guys went for the easy answer. SamDC is the only one who has been correct thus far. A battery IS a capacitor. Also, it happens to be the case that there's a pretty wide range of voltages that actually appear on 1.5V batteries. What's always the same is the total charge that has been loaded onto the battery.
great. i picked C. i'll never be a doctor :scared:
 

virilep

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I got an idea.. how about choice

E. Post in the MCAT FORUM.


haha... just playin. the answer is D. (I'm a bio med engineering major) I promise!
 

alfredoconpollo

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synapse said:
When you purchase a 1.5V AA battery, the manufacturer guarantees that you have received a certain amount of ...
A. Electric field
B. Electric potential
C. Electric potential energy
D. Coulombs of charge


?? im stumped! ive been trying to figure this out forever :(

hey synapse

you must be in dr. collins class at uci. im in his class and he just gave that question to us as a warmup prob. the answer's elec potential if you missed lecture this morning. anyways, g' luck with his class.