U7.4 – Electromagnetic Induction

1

Electromagnetic Induction

1 / 10

Magnetic flux density is...

2 / 10

How would you induce e.m.f in a flat coil?

3 / 10

A coil with N turns has a flux density of B. What would be the flux density if you doubled the turns?

4 / 10

Calculate the magnetic flux passing through a coil of diameter 350 mm if the magnetic flux density is 240 mT and the angle between the normal to the plane of the coil and the direction of the magnetic field is 56°.

5 / 10

Which statement describes Faraday's Law?

6 / 10

A 40 cm metal rod moves through a uniform magnetic field in a perpendicular motion at a constant velocity of 0.24 ms-1 for 15 seconds. The magnetic field has a magnetic flux density of 1.1 T. Calculate the the magnitude of the e.m.f induced.

7 / 10

A metal rod cuts Φ Wb of flux in 2 seconds and induces an e.m.f. of E. What would be the value of E if twice the flux was cut in a quarter of the time?

8 / 10

Which statement describes Lenz's Law?

9 / 10

Magnetic flux is...

10 / 10

Magnetic flux linkage is...

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