Question

please Q 8 or part ​

Answer 1

Answer:

1:2

Explanation:

to calculate the resistance of the bulb use the relation of power , resistance, voltage

P =( v)^2/R

p = 40w

v = 220

40w =( 220)^2 /R

R = 1210 ohm

now P = 20 w

v = 100

20w =( 100) ^2 / R

R = 500 ohm

ratio = 1210 / 500

= 2.42

approx 1:2

hope it helps

PLS MARK AS a brainliest answer

and follow me

and give thanks if it helped pls

mark as brainliest answer