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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» <html><body><p>All resistor <a href="https://interviewquestions.tuteehub.com/tag/connected-929389" style="font-weight:bold;" target="_blank" title="Click to know more about CONNECTED">CONNECTED</a> in <a href="https://interviewquestions.tuteehub.com/tag/parallel-1146369" style="font-weight:bold;" target="_blank" title="Click to know more about PARALLEL">PARALLEL</a> 1/Reff=sum of <a href="https://interviewquestions.tuteehub.com/tag/reciprocal-1180061" style="font-weight:bold;" target="_blank" title="Click to know more about RECIPROCAL">RECIPROCAL</a> 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 <a href="https://interviewquestions.tuteehub.com/tag/ohm-1129796" style="font-weight:bold;" target="_blank" title="Click to know more about OHM">OHM</a> [Reff=Effective resistance]</p></body></html> | |