A Circular Coil of 20 Turns and Radius 5

question 69

Multiple Choice

A circular coil of 20 turns and radius 5.0 cm is placed with its plane oriented at 90° to a uniform magnetic field of
The field is now increased at a steady rate,reaching a value of
After 4.0 seconds.What emf is induced in the coil?

• A)0.016 V
• B)0.021 V
• C)0.026 V
• D)0.031 V
• E)0.036 V

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Definitions:

Optical Instrument

An optical instrument is a device designed to manipulate light in order to view or analyze objects with enhanced detail.

Refraction

The bending of light by the cornea, lens, and eye fluids to focus light onto the retina.

Specific Gravity

A measure of the density of a substance compared to the density of water.

Centrifuge

A machine that uses centrifugal force to separate substances of different densities, such as blood components.