To measure the temperature coefficient of resistivity α of a semiconductor, an electrical arrangement shown in the figure is prepared. The arm BC is made up of the semiconductor. The experiment is being conducted at 
and resistance of the semiconductor arm is 
. Arm BC is cooled at a constant rate of 
. If the galvanometer G shows no deflection after 
, then α is :
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
For no deflection 
Temperature fall in 
Prepare Smarter with CGP Edu
Get practice questions, solutions, and test series in one place.
Write a Review
Share your experience with this question and solution.
Commentary
Send your comment, doubt, correction, or feedback to admin.
Similar Questions
Explore conceptually related problems
To measure the internal resistance of a battery, potentiometer is used. For , the balance point is…
Twelve wires each having resistance are joined to form a cube. A battery of emf is joined across …
An electric bulb rated is connected across a supply. The power dissipation of the bulb is:
Two wires and are made up of the same material and have the same mass. Wire has radius of and w…
In the given figure and . Battery is ideal with emf . Equivalent resistant of the circuit and cu…
In the experiment to determine the galvanometer resistance by half-deflection method, the plot of …