what is the total power

[NWDS]

Evening all can I have some help please,

what is the total power in the circuit shown here if,

R1= 6 ohms ( 1/6 = 0.1666 )

R2= 7 ohms ( 1/7 = 0.1428 both in parallel )

R3= 8 ohms ( series )

R4= 9 ohms (1/9 = 0.1111 )

R5= 10 ohms (1/10 = 0.1 both in parallel )

the supply voltage is 50v,

I have got it as far as working out my parallel then adding them to my series, but have blanked out on the rest.

thanks in advance fellas.

NWDS

 

[MajorOak]

if R1 and R2 are in parallel

R4 and R5 and in parallel

and R8 is in series with those

then I would say that the total power is

156.25 watts or there about

 

[MajorOak]

did that make sense?

 

[NWDS]

Yes that is the answer, but how did you get to that figure ???.

NWDS

 

[MajorOak]

sec I am just installing my scanner

and i will post me scribble

 

[MajorOak]

Bloody scanner

Right

1/(1/6 + 1/7) = 3.23 ohms ish

1/(1/9 + 1/10) = 4.7 ohms ish

8 ohms

add the three

15.9 about 16 ohms

Right

I = V / R

P = V * I

Substitute I

You get

P = V * V/R

which is V^2 (V squared) divided by R

so 50^2/ 16 = 156.2 Watts

Hope that helps

I Hate scanners!!

 

[MajorOak]

I had a crackin diagram, with stick figures, dancing girls and a whole stage full of kids singing. Sorry you will have to settle with my ascii crap!!

The Dancing girls looked brilliant, each one had a Resistor 6, 7, 8 9 and 10 ohms!!

Damn my scanner!!

 

[NWDS]

Thanks Major, cannt wait to see you post those on here.

NWDS