Experiment 1:Circuits Experiment Board EQUIPMENT NEEDED: -AC/DC Electronics Lab Board.Wire Leads -D-cell Battery -Graph Paper Purpose The purpose of this lab is to become familiar with the Circuits Experiment Board,to learn how to construct a complete electrical circuit,and to learn how to represent electrical circuits with circuit diagrams. Background 1.Many of the key elements of electrical circuits have been reduced to symbol form.Each symbol represents an element of the device's operation,and may have some historical significance.In this lab and the ones which follow,we will use symbols frequently,and it is necessary you learn several of those symbols. Wire Battery Light (Cell) Switch Resistor Fuse 2.The Circuits Experiment Board has been designed to conduct a wide variety of experiments easily and quickly.A labeled pictorial diagram of the Experiment Board appears on page 2.Refer to that page whenever you fall to understand a direction which mentions a device on the board itself. 3.Notes on the Circuits Experiment Board: a)The springs are soldered to the board to serve as convenient places for connecting wires, resistors and other components.Some of the springs are connected electrically to devices like the potentiometer and the D-cells. b)If a spring is too loose,press the coils together firmly to enable it to hold a wire more tightly.If a spring gets pushed over,light pressure will get it straightened back up.If you find a spring which doesn't work well for you,please notify your instructor. c)The components,primarily resistors,are contained in a plastic case at the top of the board.Keep careful track of the components and return them to the storage bag following each lab period. This way you will get components with consistent values from lab to lab. d)When you connect a circuit to a D-cell (each "battery"is just a cell,with two or more cells comprising a battery)note the polarity(+or-)which is printed on the board.Although in some cases the polarity may not be important,in others it may very important.1 Experiment 1: Circuits Experiment Board EQUIPMENT NEEDED: - AC/DC Electronics Lab Board. Wire Leads - D-cell Battery - Graph Paper Purpose The purpose of this lab is to become familiar with the Circuits Experiment Board, to learn how to construct a complete electrical circuit, and to learn how to represent electrical circuits with circuit diagrams. Background 1. Many of the key elements of electrical circuits have been reduced to symbol form. Each symbol represents an element of the device's operation, and may have some historical significance. In this lab and the ones which follow, we will use symbols frequently, and it is necessary you learn several of those symbols. 2. The Circuits Experiment Board has been designed to conduct a wide variety of experiments easily and quickly. A labeled pictorial diagram of the Experiment Board appears on page 2. Refer to that page whenever you fall to understand a direction which mentions a device on the board itself. 3. Notes on the Circuits Experiment Board: a) The springs are soldered to the board to serve as convenient places for connecting wires, resistors and other components. Some of the springs are connected electrically to devices like the potentiometer and the D-cells. b) If a spring is too loose, press the coils together firmly to enable it to hold a wire more tightly. If a spring gets pushed over, light pressure will get it straightened back up. If you find a spring which doesn't work well for you, please notify your instructor. c) The components, primarily resistors, are contained in a plastic case at the top of the board. Keep careful track of the components and return them to the storage bag following each lab period. This way you will get components with consistent values from lab to lab. d) When you connect a circuit to a D-cell (each “battery'' is just a cell, with two or more cells comprising a battery) note the polarity (+ or -) which is printed on the board. Although in some cases the polarity may not be important, in others it may very important