How to prepare for physics paper 1(cie)??????

[247sports]

PLZ someone explain Q36 June 07 and Q25 Nov 07
Really need the explanation PLZZZ 

find the total current: to find dat I=V/R
total voltage n total current
total resistance = 6
total voltae = 3
so....3/6= 2(total I)
 LOSS VOLTAGE = Ir
0.5x2
so the votage delivrd is 2 n power will b VxI so 2x0.5 = 1
this is for m/j 07
tried my best explain hope it helps

[Joseph_COOL]

thanks 274 sports
u did ur best and it was more than enough
got the idea

[Allyza1n]

hey
im very confused in interference

x = lambda * distance/ slit seperation

so;
when do the fringes appear blured?
when does the intensity increase?
when does the distance increase?
what happens if you use a monochromatic source of light?

thanks in advance

[shamanking]

O/N 07 p1 q23 and 25

[ergonomics100]

O/N 07 q2 plzzzzzz