An immersion heater is rated 120W. How long does it take the heater to raise the temperature of 1.2kg of water by 15^oC. (Assuming heat lost to the surrounding is negligible. Specific heat capacity of water = 4200 Jkg^-1K^-1C)

Similar Questions

A body that produces its own light is said to be ...

Which of the following quantities is a vector? ...

Calculate the position of an object placed in front of a convex mirror having focal length of 12 cm ...

For a short sighted person, light rays from a point on a very distant object is focused ...

A ray of light travels from air to water. The refeactive index of water is given by the expression ...

Which of the following operations can be used to convert an alternative current dynamo into a direct...

A gas occupies a certain volume at 27°C. At what temperature will its volume be twice times...

Two capacitors of capacitance 0.4$\mu F$ and 0.5$\mu F$ are connected in parallel and charged to...

In a ripple tank experiment, a vibrating plate is used to generate ripples in the water. If the dist...

Which of the following correctly explain(s) why a green leaf appears green in bright day light? i...