The document contains questions about low pass circuits, RC circuits, and different types of clipper circuits. It asks to explain and derive the output voltage expression for a low pass circuit with a step input. It also asks to calculate and plot the output of an RC circuit with a 1 kHz square wave input acting as both a high pass and low pass circuit. Finally, it asks to explain positive and negative clampers with diagrams, emitter-coupled clippers with a diagram, and to sketch the transfer characteristics and explain the clamping circuit theorem for a two-level clipper circuit.

1. 1. a) Explainabout lowpasscircuit.
b) Derive the expressionforthe outputvoltage of alow pass cicuitexcitedbystepinput.
2. A 1khz symmetrical square wave of ±10V is appliedtoanRC circuithaving1ms time
constant.Calcute & plotthe outputforthe RC configurationas
a) highpass circuit b)Lowpass circuit
3. Explainpositive andnegativeclamperswithneatsketches.
4. ExplainEmittercoupledclipperwithneatdiagram.
5. a) the inputvoltage of the twolevel clippershownbelow isvaryingfrom0to 150V.Sketch the
transfercharacteristicsfor
b)Explainclampingcircuittheorem>