Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Advanced 2020Paper 2
Exam
JEE Advanced
Year
2020
Paper
Paper 2
Subject
Physics
Chapter
Current Electricity

JEE Advanced 2020 · Paper 2 · Physics · Current Electricity

In the balanced condition, the values of the resistances of the...

In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the figure below. The resistance R3{R}_{3} has temperature coefficient 0.0004°C−10 . 0004 ° {C}^{- 1}. If the temperature of R3{R}_{3} is increased by 100°C,100 ° C, the voltage developed between SS and TT will be __________ volt.

In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the

Correct answer

0

Step-by-step solution

R3=300(1+α\DeltaT){R}_{3} = 300 ( 1 + \alpha\DeltaT )

=300(1+410000×100)=312= 300\left(1 + \dfrac{4}{10000} \times 100\right) = 312

In the balanced condition, the values of the resistances of the four arms of a Wheatstone bridge are shown in the

V1=41.9354=41.94{V}_{1} = 41 . 9354 = 41 . 94

V2=41.666=41.67{V}_{2} = 41 . 666 = 41 . 67

V1−V2=41.94−41.67=0.27{V}_{1} - {V}_{2} = 41 . 94 - 41 . 67 = 0 . 27

 

Practice Current Electricity on Quantrex Academy →

More from Current Electricity

A metal wire of cross-sectional area 0.5 mm ^2 and length 100 m is connected across a… JEE Advanced 2026As shown in the figure, the resistance of a galvanometer G can be found by the… JEE Advanced 2026The stored charge in the capacitor in steady state of the following circuit is ________ μ… JEE Main 2026A moving coil of galvanometer when shunted with 2\,Ω resistance gives a full scale… JEE Main 2026Two cells of emfs 1 V and 2 V and internal resistance 2\,Ω and 1\,Ω , respectively… JEE Main 2026Refer to the circuit diagram given below. The heat generated across the 6\,Ω resistance… JEE Main 2026In an experiment to determine the resistance of a given wire using Ohm's law, the… JEE Main 2026Under steady state condition the potential difference across the capacitor in the circuit… JEE Main 2026 Full Current Electricity list All JEE Advanced PYQs