Induced Potential (ht Only) (GCSE Physics)

A conductor moving parallel to magnetic field lines produces

Which device operates by electromagnetic induction between two coils with varying current in one coil creating a changing flux in the other?

When a conductor moves perpendicular to a magnetic field, free electrons experience a force q(v × B). This force is called the

A coil with 200 turns experiences a magnetic flux change of 0.12 Wb in 0.030 s. What is the magnitude of the average induced emf?

Which device regularly converts mechanical rotation into an alternating induced emf?

A rectangular loop is pulled quickly out of a region of uniform magnetic field. During extraction the induced emf is larger than if the loop is pulled slowly because

A conductor of length 0.50 m moves at 4.0 m/s perpendicular to a uniform magnetic field of 0.20 T. What is the magnitude of the induced emf across the ends of the conductor?

A bar magnet is pushed toward a stationary loop. The induced emf in the loop will be greatest when

A straight wire of length L moves with velocity v through a magnetic field B so that v, L and B are mutually perpendicular. The induced emf equals

A coil is connected to a lamp. Rotating the coil faster in a magnetic field makes the lamp brighter because

Which statement best describes Faraday’s law of electromagnetic induction?