CBSE Class 12-science Answered
what are resisters ?
what do you mean by circuit in series and circuit in parellel?
Asked by shiv nandan | 10 Sep, 2010, 12:00: AM
Expert Answer
A resistor (fig 1) is a device primarily used to create and maintain a known safe current within an electrical component. A resistor has two terminals across which electricity must pass, and is designed to drop the voltage of the current as it flows from one terminal to the next. It resists the flow of electrical current passing through the circuit.
(Fig 1)Three resistors
Now, in a circuit the resistors can be arranged either n series or in parallel.
In series (fig 2), the resistors have the same current flowing through them but the voltage drop across each resistor can be different.
(fig 2)
In Parallel (fig 3) arrangement, the voltage drop across each resistor is equal and the current may or may not be same.
Fig 3
Answered by | 10 Sep, 2010, 01:59: PM
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