Справочник Пользователя для PASCO Specialty & Mfg. AC/DC Electronics Laboratory EM-8656

111

012-05892A

AC/DC Electronics Laboratory

®

➤ NOTE: The bar magnet will be dropped through the coil. Make sure that the magnet does not

strike the floor, or it may break.

➀

Hold the magnet so that the south end is about 5 cm above the coil. If you are using the Alnico
Bar Magnet (EM-8620) the South end is indicated by the narrow horizontal groove.

➁

Click the “REC” button (

) and then quickly let the magnet drop through the coil.

•

Data recording will begin when the magnet begins to fall through the coil and induces a voltage.
Data recording will end automatically after 0.5 seconds.

•

Run #1 should appear in the Data list in the Experiment Setup window.

➀

Click the Graph to make it active. Select “Save As…” from the File menu to save your data.

➁

In the Graph display, use the cursor to click-and-draw a rectangle around the first peak of the
voltage plot.

•

The area under the curve for the first peak will appear in the Statistics area.

➂

Record the value of Integration for the first peak.

Integration (first peak) = __________ V*sec

➃

Repeat the process to find the area under the second peak. Record the value.

Integration (second peak) = __________ V*sec