268518 Find the equivalent resistance acrossAB :
Apply series and parallel combinations
268282 Using three wires of resistances 1ohm,2hm and 3 ohm, then no.of different values of resistances that possible are
no of combinations x=2n
268304 A wire of resistance 18ohm is drawn until its radius reduce 12 th of its original radius then resistance of the wire is
R∝1r4
268283 Six resistances of each 12 ohm are connected as shown in the fig. The effective resistance between the terminals A and B is
combination of resistors
268284 Current ' i ' coming from the battery and ammeter reading are