3 years ago

Please explain(physically) why curl of an electric field is zero but that of magnetic field is not zero.

1 answer:

3 0

You can consider it the degree to which the electric field lines flow around each of the three organize tomahawks: this is the general elucidation of twist. For an electric field created by stationary charges, the field lines point radially, with no flow. Surely, for any twist free electric field, you can decide the appropriation of charges by taking the dissimilarity. In the event that you have an electric field with twist, you know it's produced in some other way.

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A 50-cm wire placed in an east-west direction is moved horizontally to the north with a speed of 2.0 m/s. the horizontal compone

Strike441 [17]

When a wire is moved inside uniform magnetic field then its free electrons will experience magnetic force on it due to which wire will have potential difference at its ends.

Now here we will have magnetic field due to earth and wire is moving in this constant field so induced emf is given by formula

$EMF = v.(B x L)$

given that

$B = 25\mu Tj - 50\mu Tk$

$v = 2 m/s j$

$L = 0.50 m (-i)$

now by using the above formula we will have

$EMF = 2(j) .(25\mu j - 50\mu k) x (-0.50 i)$

$EMF = 2(j) .(12.5\mu k + 25\mu j)$

$EMF = 50 \mu Volts$

5 0

3 years ago

Read 2 more answers

A car drives at a constant speed of 21 m/s around a circle with radius 100 m. What is the centripetal acceleration of the car?

Sauron [17]

If you look below, we are using the centripetal acceleration formula. You just need to plug your numbers in and it should work! $A_c = \frac{v^2}{r} \\A_c=\frac{21^2}{100} \\A_c=\frac{441}{100} \\A_c= 4.41m/s/s$