C- $ GSP! ?N j l"l $۲۲l4l۲  A ;@U D1` @0BtCq"'U C1` @0CB C1` @0 +MWilliam Finzer, Key Curriculum Press, 7/92 From an idea by Jean Marie Labordefffffffffffffffffffffffffffffffffffffffffffffffffffffffffff|P @ C1` @0;  .^8gEach of the points represents a charge of one unit with sign indicated by the + or -. The arrow on one of the plus chargesthe test chargeindicates the strength of the electromagnetic field at that point. Move the test charge around to map out the field. An interesting thing to do is to animate the test charge along a straight or circular path while tracing the field vector. The Double-Click! button below shows an example. @xjDPPlus and Minus ChargesU P-GL +1` @0C&BkipnA +1` @0BI%Bm %U C1` @0BC# D1` @0C$C(Z@ K1` @0CfCejF L1` @0CC6@ -1` @0CC>!:  v1` @0CBBtCq?' j1` @0BCC$C?Fhp  m1` @0C&BBI%Bm?F`  t1` @0C&BBI%Bm?bkH 51` @0CfCC?5%F?5%F jh'x  c1` @0BI%BmCC>? jh  d1` @0BI%BmCC>? 9L  Double-Click!U  05= origin-Click! BHC  kp?; field strength BC ty?%jW Mield strength BC 9LR Hide Infoength l An i%8W Show Infoength H/pU  khow InfoengthBHCBC?dwH 6how InfoengthBCA?5%F?5%Fch@'6 Mow InfoengthBi[Cc h'6 Mow InfoengthBi[C@v{H field strengthBCbp  xield strengthBCBi[C?b p{  yield strengthBCBi[C@?X] field strengthBC field strengthCCLQ f2eld strengthBC Z_p field strengthBC!/Q,  eield strengthBHCBC?"/_,  sield strengthBHCBC?#QO 8ield strengthBI%BmAc?5%F?5%F$CA 3ield strengthBI%BmB)R?5%F?5%F%rw Tield strength BF=CWM&wH  kield strengthBF=CWMBI%Bm?(~k} 9ield strengthBF=CWMA?5%F?5%F(DI Hield strength BGCV'jhwpL  field strength BF=CWMBI%Bm?(NSH Teld strengthBF=CWM(+}otH Veld strength B iBó)*jCnon t  ueld strength BI%BmBGCV?+z=O 7eld strengthBGCVA?5%F?5%F+jMn  n1eld strengthBI%BmBF=CWM?-GY 10eld strengthBF=CWMA?5%F?5%F-M-U  m1eld strengthBF=CWMBI%Bm?-|ty  Veld strengthBhB.(kp?  Veld strengthB}Cl.(=B Neld strength Bz4C0RW Weld strength B6+V[  Weld strengthBCE7-NS?  Weld strengthB?CW7-CRՄ  zeld strength BGCVBC?:+xCNC  aeld strength BGCVB`B>?;+M[  q1eld strengthBF=CWMBCE?<-MS  p1eld strengthBF=CWMB?CW?=-9XL Hide Components ,/?>98%X8 Show Components d5,/?>98