1
Question
AB is a part of another large circuit. Also VQ−VB=12 V Then
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Solution
The correct options are
A Current, i=3 A
D VA−VB=24 V
Applying KVL from Q to B
VQ−2i−3−i=VBVQ−VB=3i+312=3i+3⇒i=3 A
Applying KVL to the loop
−6−2(i−i1)+i1=06=3i1−6⇒i1=4 A
Applying KVL from A to B
VA−2(3)+10−4(3)−4(1)−2(3)−3−3(1)=VB⇒VA−VB=24 V
A Current, i=3 A
D VA−VB=24 V
Applying KVL from Q to B
VQ−2i−3−i=VBVQ−VB=3i+312=3i+3⇒i=3 A
Applying KVL to the loop
−6−2(i−i1)+i1=06=3i1−6⇒i1=4 A
Applying KVL from A to B
VA−2(3)+10−4(3)−4(1)−2(3)−3−3(1)=VB⇒VA−VB=24 V
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