Q.

The potential drop across the 3  Ω resistor is

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a

1 V

b

1.5 V

c

2 V

d

3 V

answer is A.

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Detailed Solution

Equivalent resistance, R=4+3 ×63 + 6 =6Ω  and main current  i=ER=36  =0.5 ANow potential difference across the combination of6 Ω  and  6 Ω,  V = 0.5 × 3 ×63 + 6 =1 VThe same potential difference also develops across 3 Ω resistance.
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