Which of the following statements is true for a step-down transformer? Select two answers.  a. Primary voltage is higher than secondary voltage. b. Primary voltage is lower than secondary voltage. c. Primary current is higher than secondary current. d. Primary current is lower than secondary current.

Q: A transformer has a primary voltage of V,= 400 V and primary current of I,= 1.5 A. If the measured…

A: Given : primary voltage, Vp = 400 V              primary current, Ip = 1.5 A              Secondary…

Q: A transformer has 500 turns on its secondary and 100 turns on its primary. The primary is connected…

A:

Q: A transformer has 700 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Number of turns in secondary coil (N s) = 700 Number of turns in secondary coil (N p) = 100 Primary…

Q: A transformer has 400 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given :     Number of turns in primary, NP = 100    Number of turns in secondary, NS = 400…

Q: The output current of a transformer in which the voltage is stepped down is usually higher than the…

A: In case of step-down transformer, number of turns in secondary coil is less than that of number of…

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

A: PRIMARY AND SECONDARY WINDING IS DEFINED ON THE BASSIS OF POWER SUPPLY PRIMARY WINDING IS ONE…

Q: 4) A transformer is a device used to A) increase or decrease an ac voltage. B) transform a direct…

A: A transformer consists of a primary coil and a secondary coil. The primary coil acts as input…

Q: A transformer has 700 turns on its secondary and 100 turns on its primary. The primary is connected…

A: Given number of turns in primary coil NP  = 100 and in secondary coil Ns = 700 and the voltage on…

Q: An 18-kV neon sign is connected to a transformer and plugged into a conventional outlet (U.S.). If…

A: E1 =18000 V N1 = 300 turns E2 =120 V N2 = ?

Q: Question 3: A transformer consists of two coils of wire wound on a core. The figure below shows ome…

A: A transformer is a device that transfers electric energy from one alternating-current circuit to one…

Q: .  A laptop computer requires 24 volts to operate properly.  A transformer with 600 turns in the…

A:

Q: Ex.3-Cell phone charger. The charger for a cell phone contains a transformer that reduces 120- V (or…

A: V1= 120v  V2= 5v  N2= 30

Q: A transformer has 900 turns on its secondary and 100 turns on its primary. The primary is connected…

A: (a) The voltage output of the secondary coil is VS=NSNPVP=90010014 V=126 V Therefore, the output…

Q: A step-down transformer converts 120 V to 5 V in a phone charger. If the primary coil has 600 turns,…

A: The voltage and number of turns relationship for a transformer is: NsNp=VsVp Here, Ns and Np…

Q: A transformer is a device that takes an input voltage and produces an output voltage that can be…

A:

Q: A transformer has 20 turns of wire in its primary coil and 80 turns on its secondary coil. (a) Is…

A: Given : Number of turns in primary coil (Np) = 20 Number of turns in secondary coil (Ns) = 80…

Q: Why is the size of the transformer at the electrical substation bigger than that the handphone…

A: Transformers are used to alter the voltage of alternating voltage sources as per requirement of the…

Q: 10. An electric power station that operates at 15 kV and uses a 20:1 step-up ideal transformer is…

A: Given data; The output voltage of the transformer is V=20×15=300 kV The produced power is P=300 MW…

Q: Calculate the peak voltage of a generator that rotates its 220–turn, 0.100 m diameter coil

A:

Q: A transformer is used to supply a 14 V model train with power from a 138 V wall plug. The train…

A: A 14 V train is supplied power by a 138 V wall plug.

Q: 4. An ideal transformer has a primary voltage of 17 Va secondary voltage of 2.55 V, 200 primary…

A:

Q: What is the name of the transformer, which produces the variable output voltage? a. Power…

A: Option d is the right answer  Auto transformer

Q: Q- Explain how a step-up transformer differs from a step- down transformer. Q- The transformer used…

A: A transformer

Q: a step down transformer has an output of 12v and .5A when connected to a 120V line. assume no…

A:

Q: A generator supplies 110 V to a transformer's primary coil, which has 57 turns. If the secondary…

A:

Q: 26. Which of the following quantities increases at the secondary coil of an idea step-down…

A: The power output in the step-down transfer is: P=VII=PVI α 1V

Q: A plug-in transformer supplies 9.00 V to a video game system. (a) How many turns are in its…

A: For a transformer, VsVp=NsNp=IpIs…

Q: A transformer with 1800 turns in the primary and 300 turns in the secondary is used in an electric…

A: For transformer Np/Ns=Vp/Vs=Is/Ip using this equation we have.

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: 8. A power line has 115,000 volts of electricity running through it. If that power line enters a…

A:

Q: 1.A transformer has 25 turns in the primary coil and 200 turns in the secondary coil.  If 24 V is…

A: As per the guidelines firs question is answered. Kindly post second question as a new question.

Q: What causes eddy-current in a transformer?

A: According to Faraday's Law of Electromagnetic Induction, when an alternating magnetic field is…

Q: The load resistance on the output side of the transformer is 100Ω. What is the current flowing on…

A: Given data:  Load resistance on output side (R) = 100 Ω Secondary voltage (Vs) = 60 V Primary…

Q: A transformer is used to supply a 14.25 V model train with power from a 122 V wall plug. The train…

A:

Q: A transformer has 900 turns on its secondary and 100 turns on its primary. The primary is connected…

A:

Q: A transformer is used to supply a 14.5 V model train with power from a 132 V wall plug. The train…

A:

Q: What will happen to the voltage if there are more turns on the primary coil than the secondary coil?

A: Apologies. We only answer one question at a time. we will answer the first one as the exact others…

Q: A generator supplies 130 V to a transformer's primary coil, which has 56 turns. If the secondary…

A: It is given that, Vp=130 Vnp=56ns=470

Q: #11 Step Up Transformer A transformer primary coil has 2,300 windings, while the sec- ondary coil…

A:

Q: A transformer is designed for use in a neon sign. The input voltage is 120 V and the output needs to…

A: Given data The input voltage is Vin=120 V The output voltage is Vout=3000 V The output current is…

Q: What are transformer and also explain the difference between step-up and step down transformers?

A: An electronic setup designed to change the alternating current from one particular voltage to…

Q: Transformers (cont.) Part E- The primary coil of a transformer has 200 turns and the secondary coil…

A: Since the efficiency is not given, it is considered to be 1

Q: Which of the following are true? Select all that apply. When more wraps are added to a primary coil…

A: Transformers works on the principle of mutual induction.

Voltage Across Inductor

An actor is a passive electrical component that consists of a coil bent in the form of wire which uses electromagnetism to produce electric current through the coil. When the electric current flows through a conductor that is the coil, a magnetic flux is developed around the conductor. This flow of current through the coil creates a magnetic field based on Fleming's Right-hand thumb rule. If there is any decrease in the current passing through the inductor, then the magnetic field will also decrease and energy is released through the generation of electric current. There is also a secondary voltage inducing in the same coil due to the magnetic flux, since it opposes any changes in the electric current flowing through the circuit. An inductor is also called choke, coil, or solenoid. A choke is designed to block certain frequencies when the DC current passes. A winding coil is coated with insulation to give extra insulation and protect the circuit. They are usually tightly wrapped around a central core which is cylindrical in nature so that the magnetic flux can be induced. The solenoid is a three-dimension coil that is used to exhibit electromagnetism when the magnetic field is developed due to the current flowing through the coil. The sign convention of the inductor is the same as the power dissipating device. When the current flows into the positive side of the voltage across the inductor, the value is positive and the inductor dissipates power whereas when the inductor releases the power back to the circuit, the current has a negative sign convention.