Three resistors 2 ohm, 2 ohm and r ohm are joined parallel to each other. If
overall resistance of circuit is 0.5 ohm, calculate the value r. If these
resistors are joined with 4 volt battery, calculate total current of the circuit.
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When two Resistances R1 & R2 are in parallel then
Reff1=R11+R21
0.51=21+r1
r=32Ω
Current(I)=ReffV=0.54=8A
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