Three resistors $R_{1}$,$R_{2}$,and $R_{3}$ are connected in parallel between points $A$ and $B$. The equivalent resistance $R$ is given by:

  • A
    $R_{1} + R_{2} + R_{3}$
  • B
    $\frac{1}{R_{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}}$
  • C
    $\frac{R_{1}R_{2}R_{3}}{R_{1}R_{2} + R_{2}R_{3} + R_{3}R_{1}}$
  • D
    $\frac{R_{1} + R_{2} + R_{3}}{3}$

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Similar Questions

Two resistors of $3 \Omega$ and $6 \Omega$ are connected in parallel. The equivalent resistance $R$ is:

$(i)$ Draw a circuit diagram to show how two resistors are connected in series.
$(ii)$ In a circuit,if two resistors of $5 \ \Omega$ and $10 \ \Omega$ are connected in series,how does the current passing through the two resistors compare?

$(a)$ What is the total resistance of $n$ resistors each of resistance $R$ connected in:
$(i)$ series?
$(ii)$ parallel?
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Three $V-I$ graphs are drawn individually for two resistors and their series combination. Out of $A, B, C$,which one represents the graph for the series combination of the other two? Give a reason for your answer.

How will you conclude that the same potential difference (voltage) exists across three resistors connected in a parallel arrangement to a battery?

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