Basic Electronics

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Q:What is Resistance.Give an Example?

Resistance:

Resistance is the opposition that a substance offers to the flow of electric Current. It is represented by the uppercase letter R. The standard unit of resistance is the Ohm, sometimes written out as a word, and sometimes symbolized by the uppercase Greek letter omega:

Example:

When an electric current of one Ampere passes through a component across which a potential difference (Voltage) of one Volt exists, then the resistance of that component is one ohm.

Q:What is Series circuits. Explain?

Series circuits are sometimes called current-coupled or Daisy chain-coupled. The Current in a series circuit goes through every component in the circuit.it has only one path in which its current can flow. Therefore, all of the components in a series connection carry the same current.

The total resistance of resistors in series is equal to the sum of their individual resistances.