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AP Physics 1 Videos 69 videos
AP Physics 1: 2.4 Changes and Conservation Laws. Which of the following circuits should the students use?
AP Physics 1: 2.5 Changes and Conservation Law. At what point(s) in this situation is energy lost in any form?
AP Physics 1: 3.5 Object Interaction and Forces. Which of the following quantities would need to be known in order to calculate the impulse of the...
AP Physics 1: 3.2 Changes and Conservation Laws 188 Views
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Description:
AP Physics 1: 3.2 Changes and Conservation Laws. What is the value of the second resistor?
Transcript
- 00:00
Thank you We sneak And here's your shmoop du jour
- 00:06
brought to you by batteries We take him for granted
- 00:08
but batteries air pretty essential The modern life After all
- 00:11
we can't really run a smartphone with a steam engine
- 00:14
All right simple circuits powered by a battery with a
Full Transcript
- 00:17
terminal voltage of ten volts to resistors in a seriously
- 00:20
directly off the battery and connect to the ground If
- 00:23
the first resistor are one equals two homes what's the
- 00:27
value of the second resistor If the current is too
- 00:31
amperes well you're the finish line Yeah like the movie
- 00:39
Okay well this own guy must have been pretty smart
- 00:42
He has a law named after women A unit of
- 00:44
measurement too Part of own law states that voltage equals
- 00:48
amperage times resistance That thing because the resisters in this
- 00:54
circuit are in siri's the current running through them is
- 00:57
the same So the total voltage equals the voltage across
- 01:01
the first resistor Plus the voltage across the second resister
- 01:04
in equation Looks like this Yeah And we can plug
- 01:07
our numbers in to find an answer So the total
- 01:10
voltage is ten volt first resistor has two homes of
- 01:13
resistance and the current is too And in the second
- 01:16
resistor the current is still two amps And doing the
- 01:19
math we find that the second resistor gives three homes
- 01:23
of resistance The equation of alms law can be manipulated
- 01:27
to find voltage Current or resistance It just depends on
- 01:31
what info we have and what we're trying to find
- 01:33
Of course we're not gonna find much if we don't
- 01:35
have power Steam engines Just not practical way should go
- 01:39
green about a hamster wheel on that Be kind of
- 01:42
cool running her iphone Never mind Pita looked the other 00:01:46.211 --> [endTime] way
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