Home Physics Current Electricity NEET Previous Year Question Six resistors of 3 each are connected along…
Physics Current Electricity NEET Previous Year Question MCQ (Single Correct)

Six resistors of 3 each are connected along the sides of a hexagon and three resistors of 6 each are connected along and as shown in the figure. The equivalent resistance between and is equal to

A
2
B
6
C
3
D
9

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The correct answer is:
A

Resistances and are in series combination. Therefore their equivalent resistance . Now the resistance and equivalent resistance R’ are in parallel combination. Therefore relation for their equivalent resistance

We can calculate in the same manner for etc. and finally the circuit reduces as

shown in the figure. Therefore, the equivalent resistance between and

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