- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
K7-45. Low And High Pass Filters
Purpose
Demonstrate use of a series RL circuit as a low-pass filter and a series RC circuit as a high-pass filter.
Equipment
Oscillator, filters on transparent plate, dual trace oscilloscope with scope/TV cart.
Images
Description
The circuits below have been mounted on a plastic base for use with an overhead projector. Low-pass filter with cutoff frequency f=R/L: The signal is input to the series RL circuit and the output is taken across the resistor. High -pass filter with cutoff frequency f=1/RC: The signal is input into the series RC circuit and the output is taken across the resistor. Values of circuit components are shown on the projectual. In each case the input signal is input into the lower trace of the scope and the filtered signal into the upper trace. Complex waves can also be input to see how removal of so
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See pagesk1. forces on moving charges
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See pagesk2. electromagnetic induction
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See pagesk3. transformers
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See pagesk4. motors & generators
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See pagesk5. electrical properties of matter
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See pagesk6. electric circuits & instruments
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See pagesk7. rlc circuits
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See pagesk8. electromagnetic waves
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See pagesk1. forces on moving charges
-
See pagesk2. electromagnetic induction
-
See pagesk3. transformers
-
See pagesk4. motors & generators
-
See pagesk5. electrical properties of matter
-
See pagesk6. electric circuits & instruments
-
See pagesk7. rlc circuits
-
See pagesk8. electromagnetic waves