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3 years ago

According to Faraday, what is produced by a changing magnetic field?

Physics

1 answer:

Alex_Xolod [135]3 years ago

3 0

Answer:

c. Induced voltage.

Explanation:

Faraday's law says

$\varepsilon = N \dfrac{d \Phi_B}{dt},$

or in words,

<em>"A changing magnetic flux induces an emf (potential difference) in a coil of wire "</em>

This potential difference is induced, and therefore, we can also call it "induced voltage"; Hence, from the choices given, choice C stands correct.

<em>P.S: Another tempting choice is d; however, it is incorrect since induced emf is NOT an electrostatic force.</em>

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A proton is propelled at 4×106 m/s perpendicular to a uniform magnetic field. 1) If it experiences a magnetic force of 4.8×10−13

tia_tia [17]

Answer:

B = 0.75 T

Explanation:

As we know that the force on a moving charge in magnetic field is given by the formula

$F = qvB$

here we have

$B = \frac{F}{qv}$

here we know that

$F = 4.8 \times 10^{-13} N$

$q = 1.6 \times 10^{-19} C$

$v = 4 \times 10^6 m/s$

now from above equation we have

$B = \frac{4.8 \times 10^{-13}}{(1.6 \times 10^{-19})(4 \times 10^6)}$

$B = 0.75 T$

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4 years ago

A moving truck has more __ energy than a parked truck

Karo-lina-s [1.5K]

Kinetic energy than parked

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4 years ago

When a piece of copper is taken to the moon , a change will be observed in it's ?

SpyIntel [72]

Weight. Because there is less gravity on the moon.

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3 years ago

How much work does a man perform on a lawnmower if he applies 25 N of force to push it 100 meters

zmey [24]

Force=25N
Displacement=100m

$\\ \sf\longmapsto Work\:Done=Force\times Displacement$

$\\ \sf\longmapsto Work\:Done=25(100)$

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3 years ago

Read 2 more answers

Suppose your study partner made this table to help you remember the differences between electromagnetic waves. What is incorrect

zheka24 [161]

Answer:

The order of the waves are all messed up, and everything else is backwards. The order of the waves should be Radio, Micro, Infrared, Visible, UV, X-ray, and then Gamma Rays

Explanation:

In the order of Radio, Micro, Infrared, Visible, UV, X-ray, and then Gamma Rays, the wave length goes from shorter waves to longer, this is often confused in the way that shorter waves have more waves within a certain amount of time. The amount of waves per second is the frequency.

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3 years ago