Recent content by carlos125

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    Motional emf -easy question

    I have fixed the attachment problem
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    Motional emf -easy question

    Motional emf -easy question(re-edited) Hi guys ,: i'm learning about the motional emf , because i will have to take an exam soon, but I've found something really confusin for me well : they say that when a conductor is moving in a direction perpendicular to the field with constant velocity...
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    RC circuits - questions about the solution

    Thank you guys . That was a great explanation .:smile: thanks
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    RC circuits - questions about the solution

    Thanks , so.. since at t=0 is like we have two separate circuits then the current at the switch will be like the sum of the current of every circuit ,right? why directions is not important here?
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    RC circuits - questions about the solution

    Thanks for your reply but I still don't get it ,why does the battery still 'drive' current when it's supossed to be zero, ? the solution says that the capacitor charges through both resistances , so after the capacitor is charged up and the switch is closed , the current at the circuit should...
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    RC circuits - questions about the solution

    RC circuits -- questions about the solution Homework Statement First of all , greetings from Peru and thank you to all the people who help another people here,taht's awesome , please help me with this guys... Here's the statement The solution is My questions: ok my question is about the...
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    Question about resistances please

    haha there is no a voltage source in this problem, the problem just say that we have to prove that equivalent resistance between "a" and "b" is 27/17 ohm.That's it. :smile:
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    Question about resistances please

    actually the original figure doesn't show that the branch at point "a" bifurcates. it only appears in the solution , but i guess i finally get it , i think it's because black dots (nodes) mean that there is always a bifurcation . now everything makes sense , thanks !!!!!
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    Question about resistances please

    Hi tahnks for your reply well i don't think they are in series because in the solution they don't use the rules of resistances in seires or parallel to solve the problem .check it out . but i need to know why . if someone knows please explain
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    Question about resistances please

    Homework Statement just a questiion aren't the 1-ohm resistance(upper left) and the 3-ohm resistance in series? . The definition for resitance in series is "Two or more elements are in series if they are cascaded or connected sequentially " ,aren't they sharing the same wire? so why aren't...
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    Two simple questions about equivalent resistance and kirchoff laws

    thank you guys for your quick replies ,but aren't the 1-ohm resistance(upper left) and the 3-ohm resistance in series? . The definition for resitance in series is "Two or more elements are in series if they are cascaded or connected sequentially " ,aren't they sharing the same wire? so why...
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    Two simple questions about equivalent resistance and kirchoff laws

    two simple questions about equivalent resistance and kirchoff laws!! pleaseeeee! :D EQUIVALENT RESISTANCE: Hi everybody . greetings from Peru.I know it's a dumb question but help please .please read below Homework Statement For the network shown in the figure, show that the resistance Rab =...
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