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Beat Frequency

A 555 timer i...

Question

$A 555 t i m e r i s c o n f i g u r e d a s a n a s t a b l e m o d e w i t h R_{A} = 4 k Ω, R_{B} = 4 k Ω a n d C = 0.01 μ F . t h e n t h e d u l y c y c l e o f t h e o u t p u t w a v e w i l l b e . . . .$
66.67

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Solution

The correct option is A 66.67
$D u t y c y c l e (D) = \frac{R_{A} + R_{B}}{R_{A} + 2 R_{B}} = \frac{8}{12} = 0.6667$
$D$ % $= 66.67$ %

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