A wire 50 cm long and 
in cross‐ section carries a current of 4 A when connected to a 2 V battery. The resistivity of the wire is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
Length 
cm 
;
Area 
;
Current 
and voltage 
volts.
Resistance 
Resistivity 
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