Discussion
A 12 kHz pulse wave-form is amplified by a circuit having an Upper cut-off frequency of 1 MHz. The minimum input pulse width that can be accurately reproduced is
Answer: B
tr = 10% Pω = 
minimum Power(P) = 10 tr 10 x 0.35 μ sec = 3.5 μ sec.
Note: The I/P Pulse will be severely distorted if the rise time is more than 10% of Pulse width.
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