In the second circuit, the number of bulbs was increased to two. The switch was connected to the positive terminal of the power source and the two current probes were connected on either side of the bulb to ascertain the current entering and leaving the bulb when the switch is closed. Two alligator clips were used to form a switch.
MAC MINI POWER SUPPLY VOLTAGE AND CURRENT SERIES
In the first circuit, a bulb, two current probes, and a switch were connected in series to a 3V DC power source. PROCEDUREįor this experiment, six different circuits were connected and in each case, the current flowing in and out of the circuit’s component(s) was recorded and discussed. DC power source was used to supply a voltage of 3V throughout the experiment. It was ensured that the connections were done as indicated by the circuit diagram. DC circuits may be in series, parallel, or a combination.īulb, DC power supply, resistor, alligator clips, current probe, Logger Pro, switch. A DC circuit is necessary for DC electricity to exist. A switch is a device for making or breaking an electric circuit.Ī direct current (DC) electrical circuit consists of a source of DC electricity with a conducting wire going from one of the source terminals to a set of electrical devices and then back to the other terminal, in a complete circuit.
A direct electric current flows only when the electric circuit is closed, but it stops completely when the circuit is open.
A direct current circuit is a circuit that an electric current flows through in one direction. To explain the physics behind the different current readings across the circuit.ĭirect Current (DC) is the constant flow of electric charge from high to low potential.To understand the relationship between voltage, current, and resistance in a DC circuit.To understand how a potential difference (voltage) can cause an electric current flow through a conductor.