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Solenoids find application in a variety of electrically controlled valves. The magnetic structure shown in Figure is a simplified representation of a solenoid in which the flux in the air gap activates the motion of the iron plunger.
(a) Develop a general expression for the force exerted on the iron plunger and comment on its dependence on position x.
(b) Determine the current through the coil of N = 100 turns to pull the plunger to x = a, given that a = 1 cm, lg = 1 mm, and the spring constant is k = 1 N/m. Assume the permeability of the magnetic structure to be infinite and neglect fringing.
Mode1 When the positive pulse from PWM is applied to the transistor Q shown in figure it gets turned on. In this condition current flows through transistor Q and.
explain basic working of voltmeter transistor
make the following conversion 1000 Mx to Wb
A uniform quantizer is said to have 16 levels, and hence is called a midriser. The saturation levels are to correspond to extreme values of the message of 1 V ≤ f(t) ≤ 17 V. Find
Critical Rate of Rise of Current The maximum rate of increase of current during on state which the SCR can tolerate is called the critical rate of rise of current f
(a) For the Zener diode series voltage regulator shown in the Figure. calculate V L , I Z , V R and P Z for R L = 1.2 KΩ and repeat it for R L = 3 KΩ ? Consider Zener breakdow
Light Triggering When light is thrown on silicon the hole electron pair get excited an increases hence the leakage current of J 2 increases which will increase I C1 a
Given the network in Figure, (a) Find the currents through resistors R 1 , R 2 , and R 3 . (b) Compute the voltage V 1 . (c) Show that the conservation of power is satisfi
Seal Management - Meter Field Testing For an effective seal management system it is necessary that: i) The seals used are tamper proof, that is they cannot be remo
Q. Give the principle of biasing a FET amplifier. To correctly bias the FET, the gate needs to be negative with respect to the source. Bias is obtained in the following manner:
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