From the above given coils and resistors; Identify the Number of turns for the Primary and Secondary windings, to construct a Step-down transformer. Also the value of load resistance used at the secondary circuit.

Q: A transformer uses iron to make sure that all the magnetic flux passing through the primary…

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Q: What are the major losses that should be taken into account when intend to design an accurate model…

A: A transformer is a device which works on electromagnetic induction. When an alternating current is…

Q: 15 SSM A coil is formed by winding 250 turns of insulated 16-gauge copper wire (diameter = 1.3 mm)…

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Q: Describe the mechanism for the occurrence of losses in transformer cores and how to reduce them?

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Q: The primary circuit of a transformer consists of an A.C. power supply (Vrms 48.5 V) and a 7.96 mH…

A: V (rms) = 48.5 V I (rms) = 1.54 A L = 0.00796 H Using , V = I Z where Z is the impedence 48.5 = 1.54…

Q: How can you distinguish the primary winding from the secondary winding in a step-up transformer?

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Q: TRUE or FALSE: In an ideal step-down transformer, the current at the secondary is lower compared to…

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Q: Describe what effect the resistance of the connecting wires has on an oscillating LC circuit.

A: In an oscillating LC circuit, an inductor and capacitor is connected in series. When the switch in…

Q: In an RLC series circuit, if XL<Xc, then circuit will be O a. resistive O b. resonant O c. inductive…

A: In an RLC circuit, if XL&lt; XC , then the circuit will be Capacitive.

Q: A transformer has 150 turns in the primary col and 333 tums in the secondary col. If the primary…

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Q: How can the antenna be driven by an AC circuit?

A: What is an Antenna? An antenna is a metallic structure that captures and/or transmits radio…

Q: Explain why a transformer works for AC currents but not for DC currents

A: transformer work only on ac supply because A transformer needs an alternating current that will…

Q: Given some differences between step up and step down transformer.

A: The main difference between step-up and step-down transformer is that, step-up transformer increases…

Q: Calculate the voltage output by the secondary winding of a transformer if the primary voltage is 350…

A: Given data: 350 V is the voltage across the primary winding. The principal winding has 355 turns in…

Q: A 24300 / 300 volts, 62 hz, 147.6 KVA step down transformer has an induce emf of 3 volts per turn.…

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Q: (a) A transformer has Np-273 primary turns and N,-1345 secondary turns. The input voltage is V-220 V…

A: Given data The number of turns in the primary is NP=273 The number of turns in the secondary is…

Q: Calculate the voltage output by the secondary winding of a transformer if the primary voltage is 230…

A: Given that-The voltage of primary winding, V1= 230 VoltNumber of turns of secondary winding, N2= 290…

Q: a potentian transformer is desired to allow safe reading on a 4600 v line.  what voltage ratio of…

A: Safe voltage= Vmax= 4600 volt secondary voltage of transformer = 120 volt      (generally considered…

Q: Can a transformer be operated by a DC waveform at its input? What would be the secondary voltage of…

A: Can a transformer be operated by a DC waveform at its input? What would be the secondary voltage of…

Q: 2-Set two coils, 600 (primary) and 200 turns (secondary) onto the iron core. Connect the primary to…

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Q: The 420-turn primary coil of a step-down transformer is connected to an ac line that is 120 V (rms).…

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Q: Describe what arrangement of two flat square coils (with respect to one another) would result in the…

A: (a) For greatest mutual inductance the flat squares must be placed parallel and current in both…

Q: The 460-turn primary coil of a step-down transformer is connected to an ac line that is 120 V (rms).…

A: 1) Calculate the number of turns in the secondary coil. N2N1=V2V1N2460 turns=6.3 V120 VN2=24.15…

Q: The winding of a transformer which is connected to a source of energy is called the . inding. Select…

A: The transformer has two windings. One is Primary and the second one is secondary.

Q: What is the principal difference between a step-up transformer and a step-down transformer?

A: A transformer is a device which converts high to low and low to high voltage.

Q: State two disimilarities and two similarities between a dc motor and an ac generator.

A: dc motor and an ac generator have electromagnets and armature etc. and the external circuit of both…

Q: An induced EMF of 16 V exists in a coil when the current in the coil changes at a rate of 42 A/s.…

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Q: An AC input voltage of 5.0 V is applied across the primary =30 turns of a transformer. What is the…

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Q: State two ways to produce a higher emf in an ac generator?

A: The two ways to produce a higher electromotive force (emf) in a ac (alternating current) generator…

Q: What exactly does a step down transformer step down?

A: Step down transformer is used to drop the voltage from higher voltage to low voltage.

Q: he mutual inductance between the primary and secondary of a transformer is 0.3H.  Compute the…

A: The equation for the emf induced is given by ε=-MdIdt Here, M is the mutual inductance and dIdt is…

Q: An ideal step-up transformer with turn ratio 1:30 is supplied with an input power of 120 W. If the…

A: According to the ideal transformer, V1V2=N1N2V1=N1N2V2=130210 V=7 V Find the input current.…

Q: 6. For 2 inductors La and Le with values 150µH and 200µH.Calculate (3M) 1. Total inductance when LA…

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Q: explain why a transformer may be operated only on AC?

A: Transformer works only in a.c because it works on the principle of the rate of change of magnetic…

Q: List down 3 ways in increasing the EMF of induced coil.

A: EMF is directly related to magnetic flux through the coil so if we increase magnetic flux  per unit…

Q: How does a transformer keep the circuits oscillations going? And how can the frequency in a coil…

A: Given : To explain how does a transformer keep the circuits oscillations going? And how can the…

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.