1-lf the current to an ammeter (20A) produces a deflection (90),then how will the deflection be when the current (10 V 3 A) is in : a- control by spring. B- Control of gravity.

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A: Ac current is alternating current which has both positive and negative values. Which means that AC…

Q: What is one of the most common analog meter movements?   Select one: A. CONCENTRIC VANE B.…

A: If

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A: To solve the above magnetic circuit problem, one should have idea about magnetic circuit and its…

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A: Reluctance:  Reluctance is the property of magnetic circuit which opposes the flow of magnetic flux…

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A: In AC voltage controls, do the two thyristors work at the same time? What happens if they work at…

Q: 11. The supply voltage is 100 V, the armature resistance is 1.3 Ohms, the CEMF is 93 V and the speed…

A: The solution is given below

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A: The condition for a thyristor to begin conduction is,  The conduction happens when the anode…

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A: According to the question we have to find the value of the voltage across 14.5 ohm.

Q: 4 If the supply frequency of a certain electro-magnetic structure is doubled while the applied…

A:

Q: The polarity of an induced voltage is determined by (a) Lenz's law (c) the amount of current in the…

A: The polarity of an induced voltage is determined by Lenz's law

Q: What is the correct equation for the following motor starter. +24 STOP TRUN K1 K1 IJOG K2 30A…

A:

Q: The armature of a de generator has 0.052 effective resistance. Each brush has an effective…

A: Given Data: Ra = 0.05 ohm Rbrush = 0.01 ohm Terminal Voltage V = 400 V Current I = 40 A

Q: What is factor of a cable at 5 degrees celcius when calculating resistance

A: The solution is provided in the following section.

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A: When a rubber rod is rubbed with fur, it becomes positive because electrons are transferred from fur…

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A: Given, Total number of thyristor, n = 4. Thyristor rated voltage = 200 V. Operating voltage = 600 V.

Q: An electron synchrotron of 6 x 109eV, electrons march through the machine in a roughly circular path…

A: Given R=240 m Q=1011electronsQ=1011×1.6×10-19Q=1.6×10-8

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A: The length of the current I1 carrying conductor is not given hence assume it is of infinite length.…

Q: In an ammeter, The deflecting torque is proportional to the current passing through it, and the…

A: Given, In an ammeter, The deflecting torque is proportional to the current passing through it, τd∝I…

Q: Q1: A voltage Vin(t) from a function generator shown in Figurel is displayed on an oscilloscope.…

A: The AC coupling in the oscilloscope will filter out the DC component present in the input signal…

Q: Given the following Resistances and Inductors in Series and Voltage Source: R1 - 40 ohms R2 = 61…

A: we need to determine amplitude of the voltage across R1.

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Q: Attempt Only if you are sure . a 24 V DC voltage source is controlled by a rotational potentiometer.…

A: Given data At θ=0°C, V0°C=24 V At θ=12°C, V12°C=10 V To find out We have to determine the voltage…

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A:

Q: The resultant of any force system should be Force only O All of these Moment only O Force and Moment

A:

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A: The meter movement in an alternating current (AC) meter is a device that is used to measure AC…

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A:

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A: In this question,  We need to determine the magnitude and direction of the resultant force on the…

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A: If a wire or coil with an open circuit is moved through a magnetic field ...

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A: Given, Current = 3.8 A Flux= 2.7mWb Reluctance = 1.4 MAT/Wb

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A:

Q: b. A piece of pencil lead is connected in series with an ammeter and a power supply. The power…

A: Dear student as per our guidelines we are supposed to solve only one question.kindly repost other…

Q: There is 50 mA of current through a coil with 250 turns. The flux is 150 µWb. What is the mmf? What…

A: Given data, Current (I)=50 mA Number of turns of coil N = 250 turns Flux ϕ=150 μwb

Q: To generate electricity with 50HZ generator should run at 350 rpm ? True or flase

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Q: a. A simple DC circuit is shown in Figure 4. If ix=10A, find v1 and iy If v1=6V, find ix and iy. i.…

A: The solution can be achieved as follows.

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Q: pole in the electric motor (electromagnet) if it loses its magnetic field How to recharge the

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Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.