Question

Find out current in a bulb of Rating 40W and 220V

Answer 1

p=vI 40/220 answer will be in decimal form

Answer 2

Current is

An electric current is the rate of flow of electric charge past a point or region.

An electric current is said to exist when there is a net flow of electric charge through a region. In electric circuits this charge is often carried by electrons moving through a wire

         

                                  Power = Voltage * Current

If we want to find current then,

   

                                  Current = Voltage / Power

we know ,    

• Voltage V = 220 v

• Power P = 40 w      

     

                                  Current = 220 V / 40 W

                                 Current = 5.5 A

Know more

Q.1.-  If a bulb is rated 40w and 220v find resistance

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Q.2.-  How much work is done at the rate of 25W in 20S

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Q.3.-  A bulb is rated at 220v 40w what is it resistance

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