1 / 14

The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis

The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis Why are we learning this? One use of electrolysis and Kirchoff’s laws is hair removal $45 / £35 per 30 minutes. Electrolysis… Match up the words to the definitions ( Wordwall ). equal.

brone
Download Presentation

The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis Why are we learning this? One use of electrolysis and Kirchoff’s laws is hair removal $45 / £35 per 30 minutes

  2. Electrolysis… Match up the words to the definitions (Wordwall)

  3. equal

  4. Learning Objective: To combine understanding of Kirchoff’s laws with other concepts The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis A – Analyse circuits with different value resistors B – Predict currents using digital ammeters and Kirchoff’s laws C – Calculate current using same value resistors D – Investigate electrolysis

  5. Electricity ALWAYS takes the easiest route If electricity cannot take the easiest route, it equally divides Make up this circuit Predict what current will be at A and B Measure current in A and B A Same resistance B

  6. For these circuits, make them and test currents at A, B and C each time Also provide circuit diagrams A B A B C A B C C Provide an explanation for why changes each time

  7. Learning Objective: To combine understanding of Kirchoff’s laws with other concepts The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis A – Analyse circuits with different value resistors B – Predict currents using digital ammeters and Kirchoff’s laws C – Calculate current using same value resistors D – Investigate electrolysis

  8. So… This is a 12V cellCalculate currentat each point if… (C) R1=R2=R3, and at 8 there is 10A (B) R1 is twice R2 and R3 and at 8 there is 10A (B) R1=R2, R3=R1+R2. At 8 there is 12A.

  9. So… (A) This is a 12V cellCalculate the Relative valuesof R1, R2 and R3, if 4 is 5A, 3 is 15A and 2 is 20A 4 is 12A, 3 is 18A and 2 is 21A

  10. So… (A) This is a 12V cellCalculate the Relative valuesof R1, R2 and R3, if 4 is 5A, 3 is 15A and 2 is 20A 4 is 12A, 3 is 18A and 2 is 21A

  11. Learning Objective: To combine understanding of Kirchoff’s laws with other concepts The big question: How do Kirchoff’s laws link with voltage, resistance and electrolysis A – Analyse circuits with different value resistors B – Predict currents using digital ammeters and Kirchoff’s laws C – Calculate current using same value resistors D – Investigate electrolysis

  12. How do you do it? A – You are given current for two resistors in parallel, and a voltage. You have to calculate the resistance B – You are given the different resistance of two resistors in parallel and a voltage. You have to calculate the current. C – You have two equal resistance resistors in paralell and a voltage. You have to calculate current

  13. Test next lesson Read up on digital ammeters (hwk) Ext: q1 jun 2009

More Related