Questions LLC
Login
or
Sign Up
Ask a New Question
Transformers
Page 2
Questions (144)
Consider the ideal transformer, where i1(t)=20cos(120πt) Amps and v1(t)=100cos(120πt−45∘) volts, and a = 1 and b = 10.
What
3 answers
asked by
student
597 views
the primary coil of a transformer has N1 = 375 turns, and its secondary coil has N2 = 1,875 turns. If the input voltage across
2 answers
asked by
monica
604 views
If a step-up transformer has a primary coil with 40 turns, how many turns would be required in the secondary coil in order to
4 answers
asked by
Arianne
1,469 views
A step-up transformer has primary coil with 15 turns. How many turns would be required in the secondary coil to increase the
2 answers
asked by
SAM
714 views
A step-up transformer used in a car has a potential difference of 10 V across the primary coil with 12 turns. What is the
3 answers
asked by
marjean
2,731 views
A step-up transformer is used on a 100 V line to increase the potential difference to 1200 V. If the primary has 120 turns, then
4 answers
asked by
Ellie
842 views
If the input voltage from the transformer in Figure 23-1 is 32 V, what is the output voltage?
((Input is 4 turns of wire, output
1 answer
asked by
M&M's
381 views
A transformer has a primary coil with 600 turns and a secondary coil with 300 turns. If the output voltage is 320 volts, what is
4 answers
asked by
sid
1,439 views
Two 6600/ 250 V transformers have the following short circuited characteristics:
Applied voltage 200 V, current 30 A, power input
1 answer
asked by
B .N
738 views
A model electric train requires 12 V to operate. When connected to a household voltage of 120 V, a transformer is needed. If the
2 answers
asked by
Melvin
694 views
Explain briefly the workings of electrical transformer, both step-up and step-down
In a step-up transformer, compare the
2 answers
asked by
seanmarch58
814 views
A transformer has 25 turns in the primary coil and 200 turns in the secondary coil. If 12 V is connected to the primary coil and
3 answers
asked by
Carleigh
1,392 views
The primary of a step-down transformer connected to a 240 V source has 1000 turns. The secondary has 100 turns. What is the
1 answer
asked by
Jayla
1,089 views
I am having trouble understanding transformers!!
Here is the problem I have to solve: A protable CD player requires 12 volts to
2 answers
asked by
Justin
516 views
The primary voltage is still 120 V and the number of primary turns = 60, but now the power in the primary side is 3000 Watts and
2 answers
asked by
brit
555 views
A step-up transformer has a coil with 100 turns and a coil with 10000 turns. If the input voltage is 12.0 kV, the input current
2 answers
asked by
Tyce
1,149 views
A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides
1 answer
asked by
Bob
501 views
If a transformer has 3,000 loops in its primary coil and 1,500 loops in its secondary coil, how do I find the voltage in the
3 answers
asked by
Lynda
934 views
A device uses an AC voltage of 4320 V, which is obtained from a standard 120.0 V outlet by means of a transformer. If the
1 answer
asked by
Randle
412 views
What is the name of the transformers in which a single coil is used for both primary and secondary windings
1 answer
asked by
Brannico
330 views
The electricity received at an electric substation has a potential difference of 2.80 x 10^5 V. If the required output is 440 V,
3 answers
asked by
Anonymous
540 views
Neon signs require about 12000V for their operation. The primary operates from 120V lines.
a. What is the ratio of the number of
4 answers
asked by
Peyton
602 views
An ideal transformer has 50 turns in its primary coil and 250 turns in its secondary coil. 12 V is connected to the primary.
a)fi
5 answers
asked by
sam
2,149 views
a transformer has a primany voltage of 115 v and secondary voltage of 24 v if the number of tures in the primany is 345 how many
1 answer
asked by
annette
647 views
Neon sign require about 12,000 V for their operation. What should be the ratio of the number of loops in the secondary to the
1 answer
asked by
Jarrad Schomaker
770 views
It a transformer there is a primary voltage of 130 V in a secondary voltage of 50 V if there are five turns in the secondary
1 answer
asked anonymously
38 views
A student is comparing a step up transformer with a step down transformer. Which day does should she collect from each device?
1 answer
asked anonymously
40 views
A step-down transformer has 200 turns of wire in its primary coil. How many turns are in the secondary coil if the input voltage
3 answers
asked by
Austin
1,766 views
a transformer has 200 turns in its primary coil, the potential difference across the transformer is 220V needs to operate an
3 answers
asked by
help physics
1,591 views
In a step-up transformer, which of the following statements is correct?
Number of turns in primary is equal to number of turns in
3 answers
asked by
Anonymous
1,391 views
a transformer with 600 turns in the primary coil is connected to a 120v AC source. If the transformer is to have (3) separate
3 answers
asked by
Jay
1,372 views
The output voltage and current of a transformer are determined by the
A. number of turns in the primary and secondary coils. B.
2 answers
asked by
Saif
1,185 views
A transformer with 360 turns in its primary coil and 18 turns in its secondary coil is designed to delivered an average power of
2 answers
asked by
Sonia
1,148 views
the turn ratio of transformer is 1:10.A battery of 12v is connected to the primary coil,what is the voltage drop across the
3 answers
asked by
balu
1,094 views
The input voltage from a generating plant to a transformer is 11,000 V. If the output voltage from the transformer to
2 answers
asked by
Austin
1,077 views
please tell me if this is correct,
A step-down transformer has 16000 turns on the primary and 95 turns on the secondary. If the
2 answers
asked by
physics
1,000 views
A transformer has 120 V across the 100-turn primary coil and has 5 turns in the secondary coil. If the current in the primary
2 answers
asked by
elliot
997 views
An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12 V ac is connected to the primary. Find:
Power
2 answers
asked by
Lauren
997 views
A step-up transformer has 500 turns on its primary and 1000 turns on its secondary. When the primary is connected to 100 V and
2 answers
asked by
paul
915 views
A step up transformer used in an automobile has a potential difference across the primary of 2200 V and a potential difference
3 answers
asked by
0w0
920 views
A step-up transformer has 40 turns on its primary and 100 turns on its secondary. When the primary is supplied with an
2 answers
asked by
Anonymous
873 views
is this done correctly?
A step-down transformer has 16000 turns on the primary and 95 turns on the secondary. If the rms emf
3 answers
asked by
physics
861 views
A portable CD player requires 12 volts to operate. A transformer allows the device to be powered from a 120-volt outlet. If the
2 answers
asked by
Justin
778 views
A soldering iron uses an electric current in a wire to heat the tip. A transformer with 100 turns on the secondary coil provides
1 answer
asked by
Bob
721 views
Consider a transformer with a primary that has 50 turns of wire and a secondary of 250 turns. Then a 110-V input will produce an
2 answers
asked by
Jim
717 views
The primary coil of a transformer has 739 loops. The secondary coil has 953,677 loops. The primary coil has a 76 A current and
2 answers
asked by
Cameron
623 views
A step-up transformer has 120 turns on its primary coil. It has 1150 turns on its secondary coil. The primary circuit is
2 answers
asked by
martin
637 views
an someone please help me out on this...
An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12 V ac
2 answers
asked by
Ollie
599 views
The ratio of Secondary Turns to Primary In a Transformer is 3 if the EMF In the Secondary Coil Is 600Volts Find The EMF Of
2 answers
asked by
Basha
577 views
The generator at a power plant produces AC at 24,000 V. A transformer steps this
up to 480,000 V for transmission over power
2 answers
asked by
Voltage
557 views
Pages
1
2
3
Parent Categories (20)
Circuits
Circuits and Components
Circuits and Electrical Components
Electric current and voltage
Electrical Circuits
Electrical Devices
Electrical Engineering
Electrical Power
Electricity
Electricity and Magnetism
Electricity and Power
Electromagnetic Induction
Electromagnetism
Electronics
Movies
Physics
Physics and Electricity
Physics/Electrical Engineering
Physics/Electromagnetism
Science Fiction