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3 years ago

7

Crest : trough :: compression : _____ A. frequency B. amplitude C. rarefaction D. wavelength

1 answer:

9966 [12]3 years ago

3 0

Rarefraction.

Crest- tallest spot on transverse wave.

Trough- shortest point on transverse wave.

Compression - spot on a compressional wave where the waves are closer together.

Rarefraction - spot on a compressional wave where the waves are farther apart.

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Final magnetic field, $B_f=2.8\ T$

Resistance of the coil, R = 8 ohms

The expression for the induced emf is given by :

$\epsilon=-\dfrac{d\phi}{dt}$

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$\epsilon=A\dfrac{d(B)}{dt}$

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So, the magnitude of the induced current in the loop of wire is $2.87\times 10^{-3}\ A$ . Hence, this is the required solution.

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