A solenoid actuated valve in open position has a gap of 5mm. When actuated the solenoid closes the valve with an acceleration of -2s/sec^2 where s is the gap opening in mm. What is the time to close the valve.
A solenoid actuated valve in open position has a gap of 5mm. When actuated the solenoid...
The piston of the ball valve shown in Fig. 3.13 has an effective diameter of 10mm. The valve just closes when of the volume of the ball is submerged. Calcul te (552kN/I2) the pressure in kN/m2 of the mains supply Main 150mm diam supply 25 mm Pivot 250mm Fio. 3.13 A ball valve is arranged as in Question 4 but the distance from the centre of the ball to the pivot is 300mm and the diameter of the piston is...
Draining a tank A cylindrical water tank has a valve at the bottom. When the valve is opened, the water drains out, and rate at which the water flows out is proportional to the fill level because the pressure in the tank is proportional to the mass of water in the tank. Therefore the decrease of mass in the tank is given by , where m is the mass of water in the tank and α is a constant. (a)...
Q5) In the circuit below the switch S, has been in open position for t < 0 for a long time, but it closes at t = 0. Find the capacitor voltage (Vc) for t <0 and t > 0. C1 Vs +L S1 R2 V = 10 V 1s = 1 A R= 20 R = 40 R1 w CSF
A relay with 2000 turns has a gap length of 0.8cm when the contacts are open and 0.2cm when the contacts are closed. Given that the cross sectional area is 2 cm2, determine the pickup and dropout currents for the case that the spring exerts a force of 0.08N.
2. The two switches in the following circuit operate synchronously. When switch-1 is open switch-2 is in position a. When switch-1 is closed, switch-2 moves to position b. Switch been open for a long time and then closes at t-0. Find iz(t) for 120.(40) -1 has 5 0 o 51 1H (t) 8 V 1 H 5 H 24? a.
Problem 2. Multiple-choice: (15 pts) 2-1. A solenoid has 500 turns per meter length and radius of 5 cm. When the current in the solenoid is 8 A, what is the magnetic flux though the cross-sectional area of the solenoid? (B) 6.03 x 104 T m2 (D) 3.95 x 105 T m2 (A) 5.03 x 103 Tm2 (C) 1.58 x 103 Tm2 2-2: In an RLC circuit, resistor is R-0.7 Ω, capacitor is C 0.04 F, the inductor is L...
Problem 3: A solenoid that has 50 turns per centimeter has a radius of 3 cm. There is a single circular loop with radius of 2 cm in the very center of the solenoid. The axes of both the solenoid and the loop are the exact same. The current through the solenoid varies with time based on the formula below beginning at a time we will define to be t = 0. What is the emf generated in the single...
Question 2 --/2 Our big lecture-table solenoid has 560 turns, each with 60 mm diameter, spaced tightly to only be 160 mm Long (left-to-right). The standard power-supply only needs 10.2 Volt to push 6.0 A current thru the solenoid wire, clockwise as seen from the right When turning off the power supply, we adjust the current to zero in 125 millisec. * read this * → [a) show that the magnetic field in the solenoid space used to be 0.02639...
A transmission pipeline that conveys water from an upstream reservoir to a downstream reservoir is indicated below. The transmission main has a valve along its length that controls the discharge in the system. The discharge through the valve is computed with the valve equation below. The pipeline has a length of 4,500 m, a Hazen-Williams 'C' factor of 110, and an inner diameter of 450 mm. The upstream reservoir has a water level of 105 m. The valve discharge constant...
1. a. One solenoid is centered inside another. The outer one has a length of 47.0 cm and contains 6700 coils, while the coaxial inner solenoid is 5.00 cm long and 0.170 cm in diameter and contains 17.0 coils. What is the mutual inductance of these solenoids? The current in the outer solenoid is changing at 38.0 A/s. b. Find the emf induced in the inner solenoid. c. A toroidal solenoid has a mean radius of 18.0 cm and a...