Only if you want to burn your home down.
We usually see a thermal fuse that has failed open the primary circuit to the high voltage transformer, which in turn drives the magnetron in that appliance.
I assume you mean "built in" not "in built." A built in oven is an oven that is not mobile, and it is built in to the wall of the kitchen.
yes because the oven heats the food inside the oven which makes is thermal energy
No. An oven is an example of thermal energy.
toaster oven
Thermal energy
thermal
thermal energy
Thermal energy
electrical energy of when you turn the oven on to thermal energy when it is heating up
If the other parts of the oven work (the light), the problem could be a burned-out oven burner, or possibly its fuse inside behind the oven. If the other parts of the oven don't work, the plug could be unplugged or the breaker or fuse in the fuse box (breaker panel) could be blown.
Heat, or thermal, energy.