An electric kettle with negligible heat capacity is rated at 2000W. If 2.0kg of water is put in it, how long will it take the temperature of water to rise from 20^OC to 100^OC? [specific heat capacity of water = 4200Jkg^-1k^-1]

Similar Questions

Calculate the magnitude of the force due to a magnetic field of 0.40T on an electron moving perpendi...

Which of the following statements defines correctly the efficiency of a machine? ...

An object 1cm high placed on the axis 15cm from a converging lens forms an image 30cm from the lens....

The lowest note emitted by a stretched string has a frequency of 40Hz. How many overtones are there ...

The statements below were made by some students describing what happened during the determination of...

When the downward current flows in a straight vertical conductor, the direction of its magnetic fiel...

A vapor is said to be saturated when? ...

Which of the following indicates the correct sequence of steps taken in charging a gold-leaf electro...

Which of the following statements about pressure is not correct? pressure ...

It is easier to roll a stone up a sloping road than to lift it vertical upwards because ...