A Coil Is Wrapped with 300 Turns of Wire on the Perimeter

question 51

Multiple Choice

A coil is wrapped with 300 turns of wire on the perimeter of a square frame (side length = 20 cm) . Each turn has the same area as the frame, and the total resistance of the coil is 1.5 Ω. A uniform magnetic field perpendicular to the plane of the coil changes in magnitude at a constant rate from 0.50 T to 0.90 T in 2.0 s. What is the magnitude of the induced emf in the coil while the field is changing?

• A) 2.4 V
• B) 1.6 V
• C) 3.2 V
• D) 4.0 V
• E) 8.4 V

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Definitions:

Radioactive Isotopes

Radioactive isotopes, or radioisotopes, are variants of chemical elements that emit radiation due to an unstable nucleus and undergo radioactive decay.

Atomic Number

The number of protons in the nucleus of an atom, unique to each element.

Naturally Occurring

Refers to substances, materials, or phenomena that exist in nature without human intervention.

Atomic Numbers

The number of protons in the nucleus of an atom, which determines the chemical properties of the element.