Derive the formula of equivalent resistance …

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Derive the formula of equivalent resistance when two resistors are connected in: Series combination Parallel combination How will these formulas change for two equal resistors?

Posted by Vanshika Verma 5 years, 5 months ago

CBSE > Class 10 > Science

1 answers

Meghna Thapar 5 years, 5 months ago

Combination of three resistors in series

The potential difference across R3 =V3 = I R3. Thus, in case of series connection, the equivalent resistance, Req = V/I = (R1+ R2+ R3). For n number of resistors connected in series, the equivalent resistance Req = R1+ R2+ R3…………………Rn. The same current flows through each resistor in series. Individual resistors in series do not get the total source voltage, but divide it. The total resistance in a series circuit is equal to the sum of the individual resistances: RN(series)=R1+R2+R3+… In a series circuit, the sum of the voltages consumed by each individual resistance is equal to the source voltage. Components connected in parallel are connected along multiple paths so that the current can split up; the same voltage is applied to each component.

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