Question

How many bulbs of 25watt can glow in each circuit of 250volts and 5 ampere fuse.

Answer 1

Given :-

• Current (I) = 5 A
• Voltage (V) = 250 V
• Power (P) = 25 w

To Find :-

• How many bulbs of 25watt can glow in each circuit of 250 volts and 5 ampere fuse.

Answer :-

• We can glow 50 bulbs of 25 watts

Explaination :-

Let the total number of bulbs be x.

★ According to Question :

→ Power × Total no. of bulbs = Voltage × current

→ 25 × x = 250 × 5

→ 25x = 1250

→ x = 1250 ÷ 25

→ x = 50

Therefore,

• We can glow 50 bulbs of 25 watts.

__________________.....

Some other Formulas :

• Speed = d/t

• F = m. a

• a (bar) = v - v_0/t = Δv/Δt

• w = F x d

• P = W/Δt

• V = 1R

• PE = mgh

• p = mv

Answer 2

Answer

Given ,

• current ( I) = 5A
• power = 25 w
• potential difference = 250 v

To find ,

• we have to find how many bulb of 25 what can grow in each circuit 250 volt and 5 amp fuse ?

So ,

• let the number of bulbs be "x" .

Now , we know that ,

• power × number of bulbs = potential difference × current

• P × x = v × I

now solving and putting the value in this equation we get ;

=> 25 w × x = 250v × 5A

=> x = 250×5/25

=> x = 50

Therefore , 50 bulb of 25 w are needed .