SUBJECT: BASIC TECHNOLOGY
TERM: 3RD TERM
TOPIC: BASIC COMPONENTS OF ELECTRIC CIRCUIT
Electric circuit can be defined as the path provided for easy flow of electric current. It is for conversion of the electric current into useful purposes such as lighting and heating. Electric circuit is connected or fitted with devices that control and measure the current and energy used in the process.
Simple electric circuit
BASIC COMPONENTS OF ELECTRIC CIRCUIT
THE CELL OR BATTERY: The cell or battery is to push the free electrons round the circuit. The work done when one coulomb of charge moves from one point to the other in the conductor is known as potential difference (p.d). It is measured in volt. The instrument used for measuring the potential difference is called the voltmeter (v).The ammeter (A) is used to measure the current flow. Current is represented by the symbol I and it is measured in Amperes. The instrument used for measuring current is called the ammeter.
RESISTANCE AND E.MF
RESISTOR: This is a component that opposes the free flow of electrons in the circuit. Resistance (R) is measured in Ohms (Î) using Ohmmeter.
E.M.F (Electromotive force): this is the force that moves the electrons in the circuit. It is represented with V and measured in voltage using a voltmeter. It is the force that moves the current round electric circuit
SOURCES OF E.M.F
ARRANGEMENT OF ELECTRIC CIRCUIT
Electric circuits can be arranged in the following ways
Read more on electric circuit and its basic component (Intro Basic for JSS1- pg 107-108)
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