What is (i) the highest, (ii) the lowest total resistance that can be secured by combinations of four coils of resistance 4Ω, 8Ω, 12Ω, 24Ω?

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asked Jan 21, 2018 in Physics by Kundan kumar (49,132 points) 34 379 1011

What is (i) the highest, (ii) the lowest total resistance that can be secured by combinations of four coils of resistance 4Ω, 8Ω, 12Ω, 24Ω?

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answered Jan 21, 2018 by Vikash Kumar (144,729 points) 8 11 21
selected Jan 21, 2018 by Kundan kumar
 
Best answer

(i) The highest can be secured by series combination and is equal to

R=4Ω+8Ω+12Ω+24Ω=48Ω

(ii) The lowest total resistance can be secured by parallel combination, which is given by

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