Dokumen tersebut membahas tentang medan potensial listrik dan magnetik, termasuk potensial listrik, beda potensial, medan listrik, kerja listrik, dan contoh perhitungan soal medan listrik dan potensial listrik.

1. Pertemuan 9 - 12 MEDAN POTENSIAL Umiatin, M.Si Jurusan Fisika Fakultas Matematika dan Ilmu Pengetahuan Alam

5. Work and Voltage: Constant Electric Field The case of a constant electric field , as between charged parallel plate conductors, is a good example of the relationship between work and voltage . The electric field is by definition the force per unit charge, so that multiplying the field times the plate separation gives the work per unit charge, which is by definition the change in voltage. 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

6. This association is the reminder of many often-used relationships: 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

7. Voltage Difference and Electric Field The change in voltage is defined as the work done per unit charge against the electric field . In the case of constant electric field when the movement is directly against the field, this can be written If the distance moved, d, is not in the direction of the electric field, the work expression involves the scalar product : 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

8. In the more general case where the electric field and angle can be changing, the expression must be generalized to a line integral : 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

10. A favorite demonstration with the Van de Graaf is to make someone's hair stand on end. 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

11. Experimenters Erin Klein Jacobs above and Nehlia Grey at right demonstrate the reality that like charges repel. The strands of their hair all have the same net charge and therefore repel each other strongly. 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

14. Potensial Oleh Muatan Listrik 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

18. Potensial Pada Sumbu Cincin Bermuatan 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

20. Solusi Soal (a). (b). 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |

27. TERIMA KASIH 02/02/11 © 2010 Universitas Negeri Jakarta | www.unj.ac.id |