28 only d. High voltages produce large magnetic fields, so less insulation is needed.28. The ratio between the electric energy in the secondary to that in the primary is called:b. The given energy.a. The lost energy.c. The efficiency of the transformerjd. The working strength of the transformer. e. The gained energy.29. The diagram shows a simple d.c. electric motor which is rotating.Which change will make the motor rotatemore quickly?3. Пcoil,Clmagnetsirmagneta. increasing the number of turns on the coilb. removing the magnetsGereversing the batteryd. reversing the polarity of the magnets30. To keep a constant torque in the electric motor we use ...thethea. I4. In thea. a cylinder split into two halvesb. the coil is turned over a cylinder of soft ironmoveinducec. a coil of large number of turns and a thin wired. number of coils of similar angles between their planes.a. No.Clcc. Ant

In this problem, it is asking about the ratio of the electric energy of secondary to the primary…

u. Tigh oltugus 28. The ratio between the electric energy in the secondary to that in the primary is called: a. The lost energy. b. The given energy. c. The efficiency of the transformer, d. The working strength of the transformer. e. The gained energy.

u. Tigh oltugus 28. The ratio between the electric energy in the secondary to that in the primary is called: a. The lost energy. b. The given energy. c. The efficiency of the transformer, d. The working strength of the transformer. e. The gained energy.

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 14PE: Integrated Concepts A lightning bolt produces a rapidly varying magnetic field. It the belt strikes...

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Question

100%

28 only

d. High voltages produce large magnetic fields, so less insulation is needed.
28. The ratio between the electric energy in the secondary to that in the primary is called:
b. The given energy.
a. The lost energy.
c. The efficiency of the transformerj
d. The working strength of the transformer. e. The gained energy.
29. The diagram shows a simple d.c. electric motor which is rotating.
Which change will make the motor rotate
more quickly?
3. П
coil,
Cl
magnet
sir
magnet
a. increasing the number of turns on the coil
b. removing the magnets
Gereversing the battery
d. reversing the polarity of the magnets
30. To keep a constant torque in the electric motor we use ...
the
the
a. I
4. In the
a. a cylinder split into two halves
b. the coil is turned over a cylinder of soft iron
move
induce
c. a coil of large number of turns and a thin wire
d. number of coils of similar angles between their planes.
a. No
.Clc
c. Ant

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