Question

NTSE - SAT 20) In the given combination of resistances the effective resistance across A and C 39. is 402 32 M M ww B- A 30 WW fisc 1) 52 3) 1322 2) 712 4) 1612​

Answer 1

Explanation:

formula used :

• when resistance are in parallel then

equivalent resistance R eq

$\frac{1}{r \: eq} = \frac{1}{r1} + \frac{1}{r2} + \frac{1}{r3}$

• when n resistances are in parallel and all of theme are equal then req = r/n

• when resistance are in series then,

r eq = r1 + r2 + r3

plz refer attachment for the explanation

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