3 years ago

Help pls it’s urgent

Physics

2 answers:

Igoryamba3 years ago

3 0

The wave length becomes shorter and the pitch becomes higher

Svetllana [295]3 years ago

3 0

The wavelength becomes shorter and the frequency gets higher.

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3 years ago

You are looking down on a N = 9 turn coil in a magnetic field B = 0.5 T which points directly down into the screen. If the diame

Novay_Z [31]

Answer:

The magnitude of the voltage is $2.27\times10^{-4}\ V$ and the direction of the current is clockwise.

Explanation:

Given that,

Number of turns = 9

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Diameter = 3 cm

Time t = 0.14 s

We need to calculate the flux

Using formula of flux

$\phi=NAB$

Put the value into the formula

$\phi=9\times\pi\times(1.5\times10^{-2})^2\times0.5$

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Using formula of emf

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$\epsilon=-\dfrac{0.003180}{0.14}$

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$\epsilon=-2.27\times10^{-4}\ V$

Negative sign shows the direction of current.

Hence, The magnitude of the voltage is $2.27\times10^{-4}\ V$ and the direction of the current is clockwise.

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3 years ago