Observe the following electric circuit with Switches A,B,C; identical Batteries $V_{1}, V_{2}$ ; and identical Bulbs

i) A open, B open, C closed                 a) Q glows with maximum brightness

ii) A closed, B closed, C open            b) Only P glows

iii) A closed, B open, C open              c) Only Q glows

iv) A open, B closed, C closed            d) Both P, Q glows with same

                                                                         brightness

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i - d ,ii - c, iii - a, iv – b

i - b ,ii - a, iii - c, iv – d

i - d ,ii - a, iii - b, iv – c

i- c ,ii - d, iii - b, iv – a

answer is A.

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Detailed Solution

i) A open, B open, C closed

\to

Only Q glows

ii) A closed, B closed, C open $\to$ Both P, Q glows with same brightness

iii) A closed, B open, C open $\to$ Only P glows

iv) A open, B closed, C closed $\to$ Q glows with maximum brightness

So, Option ‘1’ is the correct answer

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