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Physics 20 Online
InTheSea:

Which of the following statements is true about the circuit shown? I subscript 1 greater than I subscript 3 greater than I subscript 2 I subscript 1 equals I subscript 2 equals I subscript 3 I subscript 2 greater than I subscript 3 greater than I subscript 1 I subscript 1 greater than I subscript 2 greater than I subscript 3

InTheSea:

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InTheSea:

Not a clue @Shadow

Shadow:

what is subscript, lol

InTheSea:

\(l_1\)

Shadow:

It's an I?

InTheSea:

No, its the small character next to the letter

InTheSea:

I subscript 1 is \(l_1\)

Shadow:

Sounds like it's referring to current

Shadow:

Which isn't constant in this parallel system with the three pathways.

Shadow:

Unlike in a series circuit

InTheSea:

To make this easier,

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InTheSea:

Yea, each one has a different resistance, but I'm not sure which one is l1/l2/l3

InTheSea:

Which is what tripped me up here

Shadow:

\ Less resistance = more current

Shadow:

That bug again

Shadow:

\[I_{1} = \frac{ V_{1} }{ R_{1} }\]

Shadow:

For some reason, when I put a subscript on it, poof doesn't happen.

Shadow:

But you can imagine how annoying it was for my physics study guide on Ohms Law until I figured that out ._.

InTheSea:

So wait, is it \(l_2\)?

InTheSea:

(I meant for the middle)

InTheSea:

so, \(l_1 \gt l_3 \gt l_2\)?

Shadow:

\[I_{1} = \frac{ 12 }{ 2 } = 6 A\] \[I_{2} = \frac{ 12 }{ 8} = 1.5 A\] \[I_{3} = \frac{ 12 }{ 5 } = 2.4 A\]

InTheSea:

Wait, does r1 = l1? I have no idea what is what here

InTheSea:

@Shadow after thinking here... was I right?

Shadow:

What do you think the answer is?

InTheSea:

\(\color{#0cbb34}{\text{Originally Posted by}}\) @InTheSea so, \(l_1 \gt l_3 \gt l_2\)? \(\color{#0cbb34}{\text{End of Quote}}\)

Shadow:

yes

Shadow:

Sorry I'm kind of distracted ._.

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