Question

caculate the energy consumed by 1200 w toaster in 20 min​

Answer 1

Answer:

1440 kilojoules

Explanation:

Given :

• Power consumed by the toaster = 1200 watts =P

• Time for which energy must be calculated for toaster = 20 minutes = 1200 seconds = t

To find :

• Energy consumed by the toaster

We know that:

Energy = power×time

Energy = 1200×1200

Energy = 14,40,000 Joules

1000 joules = 1 kilojoule

Energy = 1440 Kilojoules

The energy consumed by the toaster is equal to 1440 kilojoules

Answer 2

Given :-

• Power of Toaster( P) = 1200

• Time taken (t) =20min. =20×60=1200s

To Find:-

• Energy consumed by toaster.

Solution :-

By using this formula

➦Energy =Power × Time

➭ Energy = 1200 × 1200

➭ Energy = 1440000 joules.

∴ The energy consumed by toaster is 1440000 Joules.

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More Information!!!!

➭ The capacity of body to do work is called Energy.

➭ SI unit of Energy is Joule (J)

☛ The Rate of doing work is called Power.

☛ SI unit of Power is Watt.