The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T1, and T2 = Tensions on the tight and slack sides of belt respectively, = Coefficient of friction, between the belt and pulley, and = Angle of contact)

• A. <img src="/_files/images/mechanical-engineering/machine-design/588-386-1.png">
• B. <img src="/_files/images/mechanical-engineering/machine-design/588-386-2.png">
• C. <img src="/_files/images/mechanical-engineering/machine-design/588-386-3.png">
• D. <img src="/_files/images/mechanical-engineering/machine-design/588-386-4.png">