Given some differences between step up and step down transformer.

Q: A step-down transformer increase voltage decrease voltage O doesn't change voltage at all

A: To determine: The correct option.

Q: How can you compare alternating current (AC) and direct current (DC)?

A: Introduction :- Here we have to tell the difference between the direct current and alternating…

Q: Difference between OPEN LOOP and CLOSE LOOP?

A:

Q: Why does an iron core that extends inside and connects the primary and secondary coils intensify…

A: Magnetic materials are classified into different types based on their behavior in the external…

Q: A transformer works on the principle of

A:

Q: What happens in the secondary coil of a transformer?

A: secondary coil

Q: How a step up transformer works?

A: The transformer is a static electrical device that is used in many electronic devices like inverters…

Q: What is the principal advantage of ac over dc?

A: Given:  ac over dc

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

A:

Q: What happens when the rotational speed of a generator coil is increased?

A:

Q: Your company’s main competitor has built an extremely efficient transformer and is trying to market…

A: The low of conservation of energy states that energy can neither be created, nor be destroyed. It…

Q: how does  transformers work based on the principles of electromagnetic induction

A:

Q: A transformer designed for a 120-V ac input will often “burnout” if connected to a 120-V dc source.…

A: The polarity of a dc voltage always remains the same whereas the polarity of the ac voltage of the…

Q: What is basic difference between a generator and an electric motor?

A: The key difference between the two is that the electric motor is an electrical system that…

Q: A step up transformer decreases current. O True O False

A: Applying conservation of energy on primary and secondary coil we can see  Pp=Ps  i.e. Power in…

Q: What is a transformer? Why does it work?

A:

Q: How a step down transformer works?

A: A transformer is a device which can converts the high voltages into the low voltages.

Q: Discuss the statement " In case of a transformer whatever is gained is voltage is lost in current".

A: Transformer is a device which works on the principle of electromagnetic induction. As we apply…

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: In a step-up transformer, the primary voltage is ____ the secondary voltage. A. greater than B.…

A: In a step-up transformer, the primary voltage is ____ the secondary voltage. A. greater than B. less…

Q: Name two kinds of energy losses in a transformer. How are they minimized?

A: The two types of major losses in transformers are:Eddy currents.Hysteresis loss.

Q: Are the primary and secondary coils in a transformer physically linked, or is there space between…

A: Primary and the secondary coil of a transformer

Q: The transformer works on the principle of We construct and understand the working of the two types…

A:

Q: Why can a hum usually be heard when a transformer is operating?

A: A transformer is a device which is used to convert high to low and low to high ac voltages.

Q: How are the emf in the primary and secondary coils of a transformer related with the number of turn…

A: Emf in the coil is directly proportional to the number of turns.

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: Application of timed operation of two induction motors.

A: Solution: Application of timed operation of two induction motor

Q: What is cenre-tap transformer?

A: The centre-tap transformer is having a small different from the usual transformer in which the…

Q: What are the functions of a Transformer?

A: The function of the transformer, as the name implies, is to transform alternating current energy…

Q: magnetic induction at the centre of the

A: Given; Acc. to given figure;  Infinity long straight conductor is bent into shape. It carries a…

Q: What causes eddy-current in a transformer?

A: According to Faraday's Law of Electromagnetic Induction, when an alternating magnetic field 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: wo coils are placed close together in a physics lab to demonstrate Faraday's law of induction. A…

A: Initial current ,I1=4.90A final current, I2=0A time required, dt=1.4*10-3s so di/dt…

Q: A transformer consists of a 781-turn primary coil and a 6809-turn secondary coil. If the current in…

A: Find the primary current flows in the transformer. N1N2=I2I1N2N1=I1I2I1=I2N2N1I1=2.78 A6809781=24.2…

Q: 2W erved experimental values are ow: sured Experimental

A: As per the guidelines, I have to solve the first three parts of the question, please resubmit the…

Q: In this lab, you learned that if a coil is connected to a DC source, the moment we turn on the…

A: According to the Faraday’s law of electromagnetic induction the magnitude of the induced emf in a…

Q: Is the current that is produced by a common generator ac or dc?

A: There are several types of common generator,Gasoline generator,Diesel generator,Bio diesel…