Electronics - Parallel Circuits - Discussion
Discussion Forum : Parallel Circuits - General Questions (Q.No. 12)
12.
In the given circuit, Channel 1 of the stereo amplifier outputs 12 V to the speakers. How much total power is the amplifier delivering to the speakers?
Discussion:
12 comments Page 2 of 2.
Roja said:
1 decade ago
p = v*i.
v = 12v.
i = i1+i2.
i1 = v/r1 = 12/8 = 3/2MA.
i2 = v/r2 = 12/8 = 3/2MA.
i = 3/2+3/2 = 3MA.
p = v*i = 12*3 = 36W.
v = 12v.
i = i1+i2.
i1 = v/r1 = 12/8 = 3/2MA.
i2 = v/r2 = 12/8 = 3/2MA.
i = 3/2+3/2 = 3MA.
p = v*i = 12*3 = 36W.
Harshvardhan nirmal said:
1 decade ago
p=vi, but v=ir.
Therefore. p=i^2r.
r=8*8/8+8=4.
i=v/r v/r=12/4=3.
p=v*(v/r).
p=12*3=36W.
p=36W.
Therefore. p=i^2r.
r=8*8/8+8=4.
i=v/r v/r=12/4=3.
p=v*(v/r).
p=12*3=36W.
p=36W.
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