TY - JOUR
AU1 - Camden, M.
AB -  Department of Physics, Kenyon College Gambier, OH 43022; greenslade@kenyon.edu FFiles rom Our Oscilloscope Display of Current-Voltage Curves M. Camden Marcellin College Auckland 3, New Zealand The I-V curves of diodes and other ohmic and non-ohmic resistors may be shown on an oscilloscope using the circuit shown in Fig. 5. The voltage across the component under test provides the x displacement on the oscilloscope. The y deflection, however, is proportional to the current passing through the component. Thus, as the EMF is varied, the spot on the oscilloscope moves along a curve which is the component's I (V) characteristic. If the ground connection for the vertical and horizontal deflection plates is a common connection on the particular oscilloscope, the image will be reversed from left Fig. 5. Circuit arrangement for oscilloscope graphing of diode V/I curve. to right and should be viewed in a mirror. If all four plates are independent, a direct image can be produced. The reference resistor should have a value near the component's forward resistance. The power supply shown in the diagram must be capable of being varied over a range of voltages (plus and minus) somewhat larger than the range of voltages which are 
TI - Oscilloscope Display of Current-Voltage Curves
JF - The Physics Teacher
DO - 10.1119/1.1855753
DA - 2005-02-01
UR - https://www.deepdyve.com/lp/american-association-of-physics-teachers/oscilloscope-display-of-current-voltage-curves-oXY4IdWHuk
SP - 121
EP - 121
VL - 43
IS - 2
DP - DeepDyve
ER -