Physics 104 Lab - Setup Instructions: Magnetic Fields

Physics 104 Setup Details:
Magnetic Fields
(click each photo for a larger image)
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Bar Magnet Stations (2)
The template used for magnet and compasses; Note that compasses are face-down, and point roughly in same direction!	Place bar magnet in center of compasses
Direction of B near north end of magnet
Small Coil Rig
Small coil rig, knife switch and DC power supply (set to 3.0 volts) Note direction of compasses with no current through the coil	Switch to allow easy reversal of current direction. Power is off with switch vertical. Color code connections, and connect terminals labeled 'Battery In' to power supply
Compasses (face down!) point in direction of B with switch in Direct position (coming in along the red* wire)*	Compasses point in direction of B with switch in Reverse position (coming in along the black* wire)*
Place a compass inside of the coil to show direction of B through the coil
Large Solenoid (Pasco Air Coil Solenoid)
The solenoid is set up on the back right bench. Place voltmeter on power supply, ammeter to the right	The current will be set to 3A; note the connection of the wire to the 20A terminal
The Pasco Air Coil Solenoid. Connect the voltmenter to a pair of spade lugs attached to the binding posts of the solenoid
Horseshoe Magnet - "Jumping Wire"
"Jumping wire" is set up on left front bench with tap switch; flip range switch UP (5A position)	Use the wire reserved for this experiment
Square Coil (B Around Straight Wire)
Square coil setup. Use LabVolt power supply; connect to DC side; flip range switch UP (5A position) Set knob to '5'	Tap switch to allow easy reversal of current
Note connections of double-tap switch. Color-code wires to banana connectors. Connect power supply to "Bat.", and coil to 'App." Red connects to copper UP wire	Direction of compasses with power off
Compass direction when pressing Direct tap switch (I down into board, B is clockwise)	Compass direction when pressing Reverse tap switch (I up, out of board, B is counterclockwise)
Magneto – Old Computer Demo
An old computer dubbed 'Magneto' is set up	Use the monitor for B field distortion
Fun with magnets	Whoa!
Old Solenoid Connection – No Longer Used!
The solenoid is set up on the back right bench	Connect solenoid to power supply with two meters to measure V and I
A dual power supply is used to provide sufficient current

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