Current Electricity and Electrical InstrumentHard
Question
A wire is in the form of a tetrahedron. The resistance of each edge is r. The equivalent resistances between corners 1−2 and 1−3 are respectively
Options
A.
,
, B.r, r
C., r
, rD.r,
req = r12 = 
req = r34 = 
Topic: Current Electricity and Electrical Instrument·Practice all Current Electricity and Electrical Instrument questions
More Current Electricity and Electrical Instrument Questions
When the key K is passed at t =t0, Which of the following statements about the current I in the resister AB of the given...A moving coil galvanometer of resistance $100\Omega$ shows a full scale deflection for a current of 1 mA . The value of ...The following diagram shows the circuit for the comparision of e.m.f. of the cells. The circuit can be corrected by :-...The emf of a standard cell is balanced at 150 cm length of a potentiometer wire. When this cell is shunted by a 2ohm res...Three copper wires of lengths and cross sectional areasare (l,A), (2l,A/2) and(l/ 2,2A). Resistance is minimum in...