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Asked by riyamaths | 30 May, 2018, 07:13: PM
answered-by-expert Expert Answer
Q.11
Resistance of full circumference of circle is 10Ω. As shown in figure when resistance is evaluated across two diametrically opposite points,
it is equivalent to evaluate two resistances of 5Ω connected parallel. The effective resistance is 2.5Ω
 
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Q12
(1) When two resistances are connected in series , we get maximum resistance, minimum current
(2) When two resistances are connected in parallel, we get minimum resistance, maximum current
Answered by Thiyagarajan K | 31 May, 2018, 02:20: PM

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