Question

If in the given arrangements,the three resistors are to be replaced by a single resistor.What will be the value of resister?
a) 4m
b)6
c) 9
d) 18
e) other
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Answer 1

Answer:

the answer is c)9

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Answer 2

Answer:

The answer is 9 ohm if the circuit is like the given image

Explanation:

Since first 2 resistor are in parallel the effective resistance is R/2

Next the resistance R/2is in series with the third resistor

So net resistance is 3R/2

Since R value is 6 ohm the resistor which should be inserted instead of these three resistors should have a resistance of 9 ohm

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