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RVUNL EE Electrical & Electronic Measurements Quiz 5

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Question 1

Two sinusoidal signal having equal amplitudes, equal frequencies but different in in terms by 180 are applied to both vertical and horizontal inputs of an oscilloscope. What will be the resulting display.

Question 2

If we want to see two complete cycles of a 50 Hz sinewave in an CRO. What should be the frequency (in Hz) of the time base signal?

Question 3

The anode voltage of 1800V is shown by an electrically deflected cathode ray tube. The parallel deflecting plates are 1.8 cm long which are separately by 7.5 mm apart. If the distance of the screen is 40 cm from the centre of the deflecting plate. What will be the deflecting factor of tube?

Question 4

If P(t) = 100sin(100t +30°) and Q(t) = 100cos(ω2t + 30°) is applied on x and y plates of CRO and ‘∞’ symbol pattern is obtained, then what is the value of ω2____rad/sec.

Question 5

A CRO setup working in x-y mode is shown in figure below. If the input x (t) is a sinusoidal signal with amplitude of 12 units and, then the waveform observed on CRO screen will be

Question 6

Which of the following is the frequency of Wien parallel bridge?
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Jun 15AE & JE Exams