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Find branch current IR2

This question belongs to Electrical Engineering Branch, Loop And Node Analyses
Branch, Loop and Node Analyses
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Find branch current IR2.
Branch, Loop and Node Analyses mcq question image

Answer & Solution
Correct Answer: Option C
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6 Comments
Laya B
Laya B 2 years ago
Pls solve this problem
Haseeb Ahmad
Haseeb Ahmad 2 years ago
assume voltage at node is Va, applying nodal analysis results in:
((Va-12)/68) + (Va/37) + ((Va-4)/90) = 0
solving the above equation results us Va = 4.181 V
therefore, IR2 = Va/R2 = 4.181/37 = 113 mA
Hossam Elneshely
Hossam Elneshely 3 years ago
)A silicon sample is uniformly doped with 10^16 phosphorus atoms/cm^3 and 2×10^16 boron atoms/cm^3. If all the dopants are fully ionized, the material is _______
p-type with carrier concentration of 10^16 /cm^3.
p-type with carrier concentration of 4×10^16 /cm^3.
n-type with carrier concentration of 3×10^16 /cm^3.
Intrinsic
Prakash Pavar
Prakash Pavar 5 years ago
How to solve
Alfred Amoakoh
Alfred Amoakoh 5 years ago
How to solve this question
ZUBAYEAR AL
ZUBAYEAR AL 6 years ago
How?
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