EASY. This indicates how strong in your memory this concept is. Audio and radio signals carried on electrical wires are also examples of alternating current. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware.

A resistor is a component that creates a specified amount of resistance to electric current. When we connect the two terminals of a resistor to the two terminals of a battery, charge carriers move through the circuit, and we call this electric current. It is an adjustable or variable resistor. In a short circuit, current may be diverted from the path you intended it to flow through. Definition: Electric current is defined as the rate of flow of negative charges of the conductor.

Electrons enter the circuit through the ‘Source’ which can be a battery or a generator. You are viewing an older version of this Read. The electric current can be generated by different methods, The common sources are the generators (Dynamos) & the electrochemical cells (electrolytic cells), The electricity which you use in your homes are produced from the large power stations where the dynamos exist where the wires & the cables can carry the electric current to the towns and the cities. We have a new and improved read on this topic. Turning the flashlight on by sliding the black button to the left pushes the two pieces of metal together — or closes the switch — and completes the circuit so that current can flow. When these two terminals are joined to a network of interconnected components that form a continuous conductive path, current will flow. Completing the CAPTCHA proves you are a human and gives you temporary access to the web property. Source Of Electric Current A device that can be used to produce an electric current is called a source of electric current. Accidental open circuits are usually harmless but can be the source of much frustration when you’re trying to figure out why your circuit isn’t working the way you think it should.

In alternating current (AC) systems, the movement of electric charge periodically reverses direction. Sometimes open circuits are created by accident. A short circuit is a direct connection between two points in a circuit that aren’t supposed to be directly connected, such as the two terminals of a power supply. Rheostat is the instrument used to control the current in an electric circuit. You forget to connect a battery, for instance, or there’s a break in a wire somewhere in your circuit. Progress A short circuit is a direct connection between two points in a circuit that aren’t supposed to be directly connected, such as the two terminals of a power supply. • Water current is the rate at which water flows past a point on the water circuit.

Controlling Current in Electric Circuits The amount of electric current passing through a circuit depends on the voltage pushing the current and the resistance opposing the current. Electric current is the rate at which electric charge flows past a point on the electric circuit. D. Galvanometer. The switch is nothing more than two flexible pieces of metal in close proximity to each other. For instance, a simple light switch opens and closes the circuit that connects a light to a power source.

As such, current is analogous to the number of gallons of water flowing into, along, and out of a slide per unit of time. With the black button slid all the way to the right, the switch is in an open position and the flashlight is off.

Short circuits are another matter entirely. An important goal in these applications is recovery of information encoded (or modu…

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