1. Tardigrade
  2. Question
  3. Physics
  4. The Wheatstone bridge shown in Fig. here, gets balanced when the carbon resistor used as R1 has the colour code ( Orange, Red, Brown). The resistors R2 and R4 are 80Ω and 40 Ω respectively. Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as R3, would be :

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The Wheatstone bridge shown in Fig. here, gets balanced when the carbon resistor used as $R_1$ has the colour code ( Orange, Red, Brown). The resistors $R_2$ and $R_4$ are $80\Omega $ and $40 \Omega $ respectively.
Assuming that the colour code for the carbon resistors gives their accurate values, the colour code for the carbon resistor, used as $R_3$, would be :Physics Question Image

JEE MainJEE Main 2019Current Electricity

Solution:

$R_{1} = 32 \times10 = 320$
for wheat stone bridge
$ \Rightarrow \frac{R_{1}}{R_{3}} = \frac{R_{2}}{R_{4}}$
$\frac{320}{R_{3}} = \frac{80}{40} $

Solution Image