1.

A wire of length 100 cm is connected to a cell of emf 2 V and negligible internal resistance.  The resistance of the wire is 3 W.  The additional resistance required to produce a potential drop of 1 milli volt per cm is  [Kerala PET 2002]

A. 60 W   
B. 47 W
C. Kirchhoff's first law (for currents meeting at a junction in an electric circuit) expresses the conservation of charge
D. 35 W
Answer» D. 35 W


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