1.

We have FOUR resistors A, B, C and D of resistance of 4 ohm , 8 ohm, 12 ohm and 24 ohm respectively. The lowest and highest resistance which can be obtained by combining these FOUR resistors are: *​

Answer»

All resistor CONNECTED in PARALLEL 1/Reff=sum of RECIPROCAL of all resistance 1/Reff = 1/4+1/8+1/12+1/24 1/Reff= 1/2Reff=2 ohmHighest:All resistors connected in seriesReff=sum of all resistance Reff=4+8+12+24Reff=48 OHM [Reff=Effective resistance]



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