Question

plz tell me correct alternative i will give u a branliest​

Answer 1

Explanation:

1) 25W

2) vaccume tube

3) (B)

4) (c)

5) (c)

Answer 2

Answer:

1) P =( V^2)/R or R = ( V^2)/P , P=power, V= rated voltage and R = resistance of the bulb

Assuming that the rated voltage to be same for all the bulbs, it can be seen that the 100 W bulb will have the lowest resistance.

2) Vacuum tube.

3)  (A) is the answer.

4)  4R

5)  1: 15: 125