I want switching losses of mosfet?

Question

please specify the web address

Answer 1

Please specify your mosfet model number and manufacturer's name.

Then someone (may even you) could find the datasheet.

Answer 2

operating parameters for semiconductor devices vary widely between

manufacturers and device types.

try finding a data sheet for the device

Answer 3

The losses will be: the switched current through the MOSFET, squared, multiplied by the Rds_on; the resistance of the drain-to-source channel when the device is 'on'.  

For power MOSFETs Rds_on can range from a few milliOhms to a few Ohms, depending on the part number (and how it is constructed internally).

Here is a chart of many MOSFETs that lists their Rds_on values (along with other parameters):

https://ec.irf.com/v6/en/US/adirect/ir?c...

Look at the RDS(on) columns

.