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VikaD [51]
3 years ago
14

A current in a secondary coil is induced only if:

Physics
1 answer:
forsale [732]3 years ago
8 0
B is the correct answer, only CHANGES in magnetic flux generate currents, steady magnetic fields do nothing, and as such steady currents will generate a steady magnetic field, but it will not change the magnetic field and will not generate more current in another coil, so A is incorrect. More turns would generate a stronger magnetic field, but not a changing magnetic field that could create currents in other coils, so D is wrong for the same reason as A. C is wrong because there is no picture to judge for one, but magnetic fields are always perpendicular to their mother currents, but it doesn't do anything that would generate a current in another coil.
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Circle the anomalous result in the table below. An anomaly is a piece of data that doesn't
alexandr1967 [171]

Answer:

Explanation:

yes

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1 year ago
How does the number of neutrinos passing through your body at night compare with the number passing through your body during the
lapo4ka [179]

Answer:

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5 0
3 years ago
3.An object that begins at rest has an acceleration of 2 m/s/s What is its instantaneous speed after 3 seconds?​ ​
neonofarm [45]
The speed will be 6m/s i believe
6 0
4 years ago
A 1250 kg car starts from rest and speeds up to 14.0 m/s in 7.25s. How much force acted on the car ?
densk [106]
M = 1250 kg
V = 14.0 m/s
t = 7.25 s
F = ?

Impulse equation
F . t = m . V

:. F = mv/t

F = (1250 kg x 14.0 m/s) / 7.25s

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4 0
4 years ago
URGENT PLZ HELPPP!
Dovator [93]

λ = 3.125 m

λ = 2.83 m

<h3>Further explanation</h3>

Given

Frequency of radio : 96 MHz and 106 MHz

Required

The wavelength

Solution

Wavelength : from the crest to the crest of the next wave or the trough to the trough

Frequency (f): number of waves in one second

v = λ x f

λ = v : f

Input the value :

f = 96 MHz = 96 x 10⁶ Hz

λ = v : f

λ = 3 x 10⁸ :  96 x 10⁶

λ = 3.125 m

f = 106 MHz = 106 x 10⁶ Hz

λ = v : f

λ = 3 x 10⁸ :  106 x 10⁶

λ = 2.83 m

6 0
3 years ago
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