Question

what current will a bulb draw when connected to 110v supply line if the bulb draws a current of 2A from the 220v supply line?
explanation:.............pls​

Answer 1

Answer:

First of all we will calculate the resistance of electric iron. Now, in the first case, the electric iron draws a current of 3.4A from 220V supply line. So,

Potential difference, V=220V

Current, I=3.4A

And, Resistance, R=? (To be calculated)

Now, VI=R

So, 2203.4=R

Resistance, R=64.7Ω

Thus, the resistance of electric iron is 64.7 ohms. This resistance will now be used to find out the current drawn when the electric iron is connected to 110V supply line. So,

VI=R

110I=64.7

Current, I=11064.7

=1.7A

Thus, the electric iron will draw a current of 1.7 amperes from 110 volt supply line.

I Hope You Understand

Answer 2

Answer:

answer is 1 A

Explanation:

if voltage is equal to 1/2 of the second bulb then

p=vi

i.e v1/v2=i1/i2

110/220=x/2

x=1 A