A Conducting Rod Whose Length Is ℓ = 25 Cm

question 15

Multiple Choice

A conducting rod whose length is ℓ = 25 cm is placed on a U-shaped metal wire that is connected to a lightbulb having a resistance of 8.0 Ω as shown in the figure. The wire and the rod are in the plane of the page. A constant uniform magnetic field of strength 0.40 T is applied perpendicular to and out of the paper. An external applied force moves the rod to the left with a constant speed of 12 m/s. What are the magnitude and direction of the induced current in the circuit?

• A)150 mA clockwise
• B)150 mA counterclockwise
• C)34 mA counterclockwise
• D)34 mA clockwise
• E)100 mA clockwise

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Definitions:

Peripheral Vision

The ability to see objects that are not in the direct line of vision, but rather in the outer edges of the visual field.

Color Vision

Color vision is the capacity of the eye and brain to distinguish objects based on the wavelengths of the light they reflect, emit, or transmit.

Retina

The light-sensitive layer of tissue at the back of the eye that converts light into neural signals.

Cones

Cells in the eye's retina known as photoreceptors, which are optimal in well-lit conditions and allow for the observation of colors.