say in one mark pls faster
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Answered by
2
Answer:
where power is join seris circuit then
consumed power in circuit p= (p1×p2)/(P1+P2)
=(200×100)/(300)
=20000/300
=66.66
=67
✌️
Answered by
1
Answer:
Explanation:
Power=VoltageXcurrent
P=VI
V=250 V
let I flow through Bulb 1
and i flow through Bulb 2
Bulb(1)=B1 consumes power 200 W=P(1)
B2 consumes power 100 W=P2
for bulb 1
P(1)=VI
200/250=I=0.8 A
for bulb 2
P(2)=Vi
100/250=i=0.4 A
Now resistances in bulbs will be [R(1)and R(2)]
R(1)=V/I and R(2)=V/i
R(1)=250/0.8=312.5 ohms.
R(2)=250/0.4=625 ohms
As resistances are in series
total resistances R
R=R(1)+R(2)
R=937.5 ohms
now P=V²/R
P=(250)²/937.5=
P=66.67 W
Therefore the answer is 67watt
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