The anode of a diode valve ils bmbarded by a stream of electrons each of mass `9xx10^(-31)kg` moving with velocity `10^(7)ms^(-1)`. If the mass of anode is `0.5g` and its specific heat capacity `100` cals per kg per kelvin `(J=4.2` joules `cal^(-1)`) and `3xx10^(17)` electrons hit it per second, calculate the rate at which its temperature rises.

Answer

`64.3^(@)C` per sec