Which actuators use a heat source to generate motion ?

A. Thermal actuators थर्मल ऐक्चुएटर्स

B. Magnetic actuators मैग्नेटिक ऐक्चुएटर्स

C. Both of the above उपरोक्त दोनों

D. None of these इनमें से कोई नहीं

Correct Answer is :

A. Thermal actuators

Explanation

Thermal actuators generate motion or mechanical force by using heat as an energy source. When heated, they expand, deform, or trigger a phase change to produce motion.