The device used for displaying the waveform of given voltage is:
Correct answer: B. Cathode ray oscilloscope
- A. A.C generator
- B. Cathode ray oscilloscope
- C. D.C generator
- D. Galvanometer
Explanation
A cathode ray oscilloscope is a device used to display and analyse the waveform of electrical signals. It consists of a cathode ray tube (CRT) and various control circuits. When an electrical signal is applied to the input of a CRO, it deflects the electron beam inside the CRT, producing a visual representation of the waveform on the screen. CROs are extensively used in laboratories and electronic testing to observe the behaviour of electrical signals over time.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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