Write the equation for the nodel voltage va that is entity in terms of is,r1,r2
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Hey mate here is your answer
If r1 is in series with parallel connected to r2 and r3, the total current decreases if r2 opens.
Explanation:
Before opening of r2
Req1=r1+r2r3r2+r3
Req1=r1+r31+r3r2 (1)
After opening of r2:
hence r2=infinity (2)
write down (1) after substitution of (2)
Req2=r1+r3[sincer3r2=0 if r2=infinity]
Req2=r1+r3 (3)
from (1)&(3)
Req2>Re
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If r1 is in series with parallel connected to r2 and r3, the total current decreases if r2 opens.
Explanation:
Before opening of r2
Req1=r1+r2r3r2+r3
Req1=r1+r31+r3r2 (1)
After opening of r2:
hence r2=infinity (2)
write down (1) after substitution of (2)
Req2=r1+r3[sincer3r2=0 if r2=infinity]
Req2=r1+r3 (3)
from (1)&(3)
Req2>Re
please mark me as brainlist
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