Question

A bulb is marked 100w ,200v and an electric heater is marked 1000w,200v
1)what is the ratio between the resistance of this 2 device
2)how does the power voltage rating of a device help us to decide about the type of leads to be used for it
3) in which of the device is thicker connecting wire of lead is required

2) the resistance of a wire of 0.01 cm radius is 10 ohm if the resistivity of the material of the wire is 50*10 rais to -8 ohm meter find the length of the wire
please answer to this 2 questions it is very urgent

Answer 1

1:10
heater this are the answer to your question

Answer 2

1:10

heater

that is the answer to your questions