An electric heater rated 220v, 1000 w is immersed into a bucket full of water, calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds.
[specific heat capacity of water = 4200 jkg-1 K-1]

Similar Questions

What is the number of neutrons in the Uranium isotope \(^{238}_{92}X\)?...

A step-down transformer is used on a 2.2 kV line to deliver 110 V. How many turns are on the primary...

A stone and a feather are dropped from the same height above the earth surface. Ignoring air resista...

The image of a pin formed by a diverging lens of focal length 10cm is 5cm from the lens. Calculate t...

If N.E.P.A. charges 65 kobo per kilowatt-hour for electricity supplied to consumers, what bill would...

In the diagram above, a ray of light passes from glass into air, if the angle of incidence in glass ...

A fixed mass of gas of volume 600cm3 at a temperature of 27oC is cooled at constant pressure to a te...

A 40W instrument has a resistance 90 Ohms. On what voltage should it be operated normally ...

A battery of emf 24V is connected to three resistor P, Q and R as illustrated in the given diagram. ...

The intensity of light falling on the film in a camera depend on the i. brightness of the object....