The nbsp-equivalent resistance between the points A amp- B in the circuit is- R-1 - R-2R-1 - R-2 - R-3R-2 - R-3R-1 - R-3

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Series Combination of Resistors

The nbsp;eq...

Question

The equivalent resistance between the points A & B in the circuit is:

R_{1} + R_{2}

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R_{1} + R_{2} + R_{3}

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R_{1} + R_{3}

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R_{2} + R_{3}

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Solution

The correct option is B $R_{1} + R_{2} + R_{3}$
Components connected in series are connected along a single path, so that the same current flows through all of the components.
For series combination, equivalent resistance,
$R_{e q} = R_{1} + R_{2} + R_{3} + . . . + R_{n}$ .
Here $R_{1}, R_{2} & R_{3}$ are in series
$∴ R_{e q} = R_{1} + R_{2} + R_{3}$ .

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Write the expressions for the equivalent resistance R of three resistors $R_{1}, R_{2}$ and $R_{3}$ joined in (a) parallel, and (b) series.

Question 11
A student carries out an experiment and plots the V-I graph of three samples of nichrome wire with resistances $R_{1}$ , $R_{2}$ and $R_{3}$ respectively (figure). Which of the following is true?

(a) $R_{1} = R_{2} = R_{3}$
(b) $R_{1} > R_{2} > R_{3}$
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Q. The equivalent resistance between A & B in the circuit is .

Q. In fig. the equivalent resistance of the following combination of resistors

r_{1}, r_{2}, r_{3}

and

r_{4}

r_{1} = r_{2} = r_{3} = r_{4} = 2.0 Ω

, between the points A and B is

In the circuit given E = 6.0 V, $R_{1} = 100 Ω, R_{2} = R_{3} = 50 Ω, R_{4} = 75 Ω$ . The equivalent resistance of the circuit, in $Ω$ , is

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The equivalent resistance between the points A & B in the circuit is:

The correct option is B R1+R2+R3Components connected in series are connected along a single path, so that the same current flows through all of the components. For series combination, equivalent resistance, Req=R1+R2+R3+...+Rn. Here R1, R2 & R3 are in series ∴Req=R1+R2+R3.