What does an electric circuit mean? Answer A continuous and closed path of an electric current is called an electric circuit. An electric circuit consists of electric devices, source of electricity and wires that are connected with the help of a switch. Define the unit of current. Answer The unit of electric current is ampere A.
Calculate the number of electrons constituting one coulomb of charge. Answer One electron possesses a charge of 1. Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it? What are the advantages of connecting electrical devices in parallel with the battery instead of connecting them in series?
R is the equivalent resistance of resistances 0. These are connected in series. Hence, the sum of the resistances will give the value of R. Each component of a series circuit receives a small voltage so the amount of current decreases and the device becomes hot and does not work properly.
Hence, series arrangement is not used in domestic circuits. So they are usually used for electricity transmission. Previous Post Next Post.
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