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State the Working of UJT
Make circuit arrangement as demonstrated in fig.(c), where UJT is represented by its equivalent circuit comprising resistances RB1, RB2 and a diode D. Generally B2 is kept positive with respect to B1. A variable positive voltage is supplied to emitter through a switch S.
(1) These rays transmitted in the forward direction of medium with a finite speed. (2) Energy and momentum are transmitted in the direction of propagation of waves without real
is it the current or the voltage which is responsible for electrc shock?
Water flows through a right angle valve at the rate of 1000 lbm/s as shown in the figure. The pressure just upstream of the valve is 90 psi and the pressure drop across the valve i
The number of electrons in one molecule of are: (1)22 (2)44 (3)66 (4)88 Ans: 22
What are the demerits of the typical ultrasonic flaw detector? Demerits of a typical ultrasonic flaw detector: a. Both the sides of the specimen are needed for the study.
Surface Mount Devices (SMDs) are new components designed with soldering pads or short leads. They are much smaller in size as compared to leaded components. The SMDs are directly a
define the coefficient of friction
As a pendulum is raised to higher altitudes, its period: a) Increases b) Decreases c) Remains the same d) Decreases, and then remains the same Ans: When
Are fibers optics systems expensive? To find out whether a system is expensive one would have to establish a comparison with an option, which in most cases doesn't exist. To co
what is meant by positive deviation of beer lambert''s low
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