Current Electricity and Electrical InstrumentHard
Question
Consider a thin square sheet of side L and thickness t,made of a material of resistivity ρ. The resistance between two opposite faces, shown by the shaded areas in the figure is
Options
A.directly proportional to L
B.directly proportional to t
C.independent of L
D.independent of t
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
The equivalent resistance of a group of resistances is R. If another resistance is connected in parallel to the group, i...The resultant resistance of n resistance wires each of r ohm is R, when they are connected in parallel. When these n res...In the following circuit the resultant e.m.f. between AB is :-...Two resistance wires on joining in parallel the resultant resistance is ohm. One of the wire breaks, the effective resis...The efficiency of a cell when connected to a resistance R is 60%. What will be its efficiency if the external resistance...