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
    $\frac{R_{1} + R_{2} + R_{3}}{3}$

Explore More

Similar Questions

$A$ wire connected to a bulb does not glow,whereas the filament of the bulb glows when the same current is passed through them. Why?

You are given a resistance wire of length $50 \,cm$ and a battery of negligible resistance. In which of the following cases is the largest amount of heat generated?

$A$ torch bulb is rated $5\,V$ and $500\,mA$. Calculate its $(i)$ power,$(ii)$ resistance,and $(iii)$ energy consumed when it is lighted for $4$ hours.

Difficult
View Solution

Two students perform experiments on series and parallel combinations of two given resistors $R_{1}$ and $R_{2}$ and plot the following $V-I$ and $I-V$ graphs. Which of the graphs is (are) correctly labelled in terms of the words 'series' and 'parallel'? Justify your answer.

Name the commercial unit of electrical energy. Convert it into joule. What is the other name of the commercial unit?

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo