A Coil Is Placed in a Changing Magnetic Field and an Emf

question 22

Multiple Choice

A coil is placed in a changing magnetic field and an emf is induced.What happens to the induced emf if the rate of change of magnetic field doubles?

• A) The emf quadruples.
• B) The emf increases by a factor of 16.
• C) There is no change.
• D) The emf doubles.

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Definitions:

Expansion

The process of increasing in size, volume, quantity, or scope.

Bipolar Neurons

A type of neuron with two extensions (one axon and one dendrite), common in sensory systems like the retina of the eye.

Motor Neurons

Nerve cells forming part of the pathway along which impulses pass from the brain or spinal cord to a muscle or gland.

Sensory Neurons

Neurons responsible for converting external stimuli from the organism's environment into internal electrical impulses.