Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Physics Thermodynamics Heat engines
A device that converts heat energy into work in a cyclic process is
1
Refrigerator
2
Turbine
3
Heat engine
4
More than one of the above
5
None of the above