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Instruction Manual and
Experiment Guide for the
PASCO scientific Model

SF-8607 and SF-8608

012-04046C

5/92

Basic Current Balance

and

Current Balance Accessory

Copyright

©

June 1989

$5.00

SF-8607
Basic Current Balance

SF-8608

Current Balance Accessory

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2
3
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Содержание SF-8607

Страница 1: ...Experiment Guide for the PASCO scientific Model SF 8607 and SF 8608 012 04046C 5 92 Basic Current Balance and Current Balance Accessory Copyright June 1989 5 00 SF 8607 Basic Current Balance SF 8608 Current Balance Accessory ...

Страница 2: ...scientific Basic Current Balance and Accessory 012 04046C ...

Страница 3: ...Section Page Copyright Warranty and Equipment Return ii iii Introduction 1 Equipment 2 Operation 3 Experiments Experiment 1 Force versus Current 5 Experiment 2 Force versus Length of Wire 6 Experiment 3 Force versus Magnetic Field 7 Experiment 4 Force versus Angle 8 Maintenance 9 ...

Страница 4: ...eturn of equipment for warranty repair belongs to the cus tomer Equipment must be properly packed to prevent damage and shipped postage or freight prepaid Damage caused by improper packing of the equip ment for return shipment will not be covered by the warranty Shipping costs for returning the equip ment after repair will be paid by PASCO scientific ii Equipment Return Should the product have to ...

Страница 5: ... or in scalar terms Fm ILBsinθ With the PASCO SF 8607 Basic Current Balance you can vary three of the variables in the equation the current the length of the wire and the strength of the magnetic field and measure the resulting magnetic force By adding the SF 8608 Current Balance Accessory you can also vary the angle between the wire and the magnetic field thereby performing a complete investigati...

Страница 6: ... beam balance such as the PASCO Model SE 8725 or an electronic top loading balance such as the PASCO Model SE 8709 Lab stand such as the PASCO Model ME 9355 Hook up wires with banana plug connectors such as the PASCO Models SE 9750 red and SE 9751 black Current Balance Accessory Unit Magnet Assembly Figure 2 Equipment Included with the SF 8608 Current Balance Accessory Current Balance Accessory Un...

Страница 7: ...rent on If the reading is negative reverse the leads where they plug into the arms of the Main Unit The measured weight is directly proportional to the force caused by the current moving through the magnetic field Varying the Wire Length Vary the wire length by using one of the six different Current Loops To change the Current Loop Swing the arm of the Main Unit up to raise the present Current Loo...

Страница 8: ...eld is varied by changing the number of magnets that are mounted on the Magnet Assembly We recommend you mark the north pole of each magnet to help students during setup The magnetic field strength may not be exactly proportional to the number of mag nets but it is reasonably close as seen by the data in Figure 7 SF 8608 Current Balance Accessory Using the SF 8608 Current Balance Accessory you can...

Страница 9: ...ce Set up the apparatus as shown in figure 1 1 Place the magnet assembly on the pan of the balance With no current flowing press the TARE button bringing the reading to 0 00 grams Now turn the current on to 0 5 amp and record the mass value in the Force column of Table 1 1 Increase the current in 0 5 amp increments to a maximum of 5 0 amp each time recording the new Force value Data Processing Plo...

Страница 10: ...this difference as the Force Turn the current off Remove the Current Loop and replace it with another Repeat steps 2 5 If you are using an electronic balance Place the magnet assembly on the pan of the balance With no current flowing press the TARE button bringing the reading to 0 00 grams Now turn the current on and adjust it to 2 0 amps Record the mass value in the Force column of Table 2 1 Turn...

Страница 11: ... of the holder Place the magnet assembly on the pan of the balance With no current flowing press the TARE button bringing the reading to 0 00 grams Now turn the current on and adjust it to 2 0 amps Record the mass value in the Force column of Table 3 1 Add additional magnets one at a time Make sure the north poles of the magnets are all on the same side of the Magnet Assembly Each time you add a m...

Страница 12: ...RE button bringing the reading to 0 00 grams 3 Set the angle to 0o with the direction of the coil of wire approximately parallel to the magnetic field Set the current to 1 0 amp Record the mass value in the Force column of Table 4 1 4 Increase the angle in 5o increments up to 90o and then in 5o increments to 90o At each angle repeat the mass force measurement Data Processing Plot a graph of Force ...

Страница 13: ...aximum retention of field strength The Magnet Assembly from the SF 8608 Current Balance Accessory should have a keeper made of soft iron placed across the pole pieces to help retain the magnetism of the magnets CUSTOMER SERVICE For service problems please call toll free 1 800 772 8700 and ask for customer service Figure 9 Storing the Magnets SF 8608 Magnet Assembly SF 8607 Magnets N S N S Iron or ...

Страница 14: ...scientific 10 012 04046C Current Balance and Accessory Notes ...

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