Observe the given circuit and calculate the resultant resistance
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1
Answer:
10 ohm
Explanation:
in series we only simply add.
but in parallel we cross multiply and reciprocate it for resistor
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When resistors are in parallel, resistance R is given by 1/R= 1/R1+1/R2
Whwn in series, its R1+R2
The two resistors offering 4ohm and 12 ohm are in parallel. Thus,1/R= 1/4+1/12 =4/12=1/3
R=3ohm
7ohm resistor is in series. Thus, total resistance= 3+7 =
10 ohm
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