PASCO EM-8627, EM-8678A User Manual

Instruction Sheet

Charge/Discharge Circuit

EM-8678A

012-14176A

Included Items Information

Charge/Discharge Circuit EM-8678A

Light Bulbs, #14 GE mini-screw (3) EM-8627 (pack of 25)*

*Order EM-8627 for replacement bulbs. See the PASCO catalog or web site at www.pasco.com for more information.

Required Items Information

AA* Batteries (2) PI-6601 (pack of 4)

Banana Plug Patch Cords SE-7123 (set of 8)

*AAA Batteries can also be used in the EM-8678A Charge/Discharge Circuit.

®

Model No.EM-8678A Product Description

Battery holders

Charge
position

Discharge

position

Double-throw

switch

Empty slot

Resistors

Shielded

banana jack

connector

Capacitor,

1.0 farad, 5 volt

Common conductive

pathway

Light bulb holders

Additional Equipment Recommended for Experiments Information*

PASCO Interface (such as UI-5000 850 Universal Interface) See PASCO web site

PASCO Data Acquisition Software (such as PASCO Capstone) See PASCO web site*

PASPORT Voltage/Current Sensor PS-2115

Power Supply (Low Voltage) See PASCO web site*

*See the PASCO web site at www.pasco.com.

Product Description

The EM-8678A Charge/Discharge Circuit can be used for the study of Ohm’s Law, battery and capacitor
charge/discharge rates, or for various other experiments in electronics. The Charge/Discharge Circuit is included
in the EX-9949 and EX-9953 Ohm’s Law Experiments.

Mounted to the circuit board are three types of resistors (10, 33, and 100 ohm), a double-throw switch, three light
bulb holders, and a 1.0 farad (F) capacitor. The board also includes 15 shrouded banana jack connectors for
attaching leads and cables and one empty slot for connecting any other devices.

The circuit board also has holders for two AA or AAA batteries, which would provide the main power supply to
the circuit. The resistors and light bulbs connect to a common ground (negative terminal) through the conductive
electrical pathway on the lower half of the board.

Auxiliary power supplies, sensors, and other external devices can also be connected. A set of short banana patch
cords is recommended for making connections between or into other leads. A Voltage/Current Sensor can be
connected to measure voltage and current in the circuit and discharge rates for the capacitor.

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