Question

How much current will an electric bulb drawn from 220 volt if the resistance of the bulb is 1200 ohm

Answer 1

Answer:

0.183 Amp

Explanation:

According to the given question,

V = Potential difference = 220 V

R = Resistance = 1200 ohm

I = Current = ?

And we are asked to find the current which is drawn from the bulb.

So, We know this question can be solved by ohms law.

According to ohm's law,

• V = IR

• I = V/R

(Putting the values)

• I = 220/1200

• I = 11/60

• I = 0.183 amp ans.

So, 0.183 A of current will be used by the bulb if 220 V and 1200 ohm are the condition.

Answer 2

(i)Given ;- V=220V

                R=1200 ohm

                 V=IR  

• I=V/R=220/1200=0.1833A

(ii) V=220V R=100 ohm

• I=V/R=220/100=2.2A