1
AIPMT 2003
MCQ (Single Correct Answer)
+4
-1
In a Wheatstone's bridge all the four arms have equal resistance R. If the resistance of the galvanometer arm is also R, the equivalent resistance of the combination as seen by the battery is
2
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
Specific resistance of a conductor increases with
3
AIPMT 2002
MCQ (Single Correct Answer)
+4
-1
For a cell terminal potential difference is 2.2V when circuit is open and reduce to 1.8 V when cell is connected to a resistance of R = 5 $$\Omega $$. Determine internal resistance of cell (r)
4
AIPMT 2001
MCQ (Single Correct Answer)
+4
-1
Copper and silicon is cooled from 300 K to 60 K , the specific resistance
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