A thyristor has maximum allowable junction temperature of 110° C and the ambient temperature is 40°C, If the maximum internal power dissipation is 50 W, the thermal resistance is

• 2° C/W
• 1.4° C/W
• 0.7°C/W
• 2.2° C/W

Correct Answer: 1.4° C/W

Explanation:

.