AP (Advanced Placement) Physics(B-C): Questions 395 - 396 of 921

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Question number: 395

» Fluids & Solids

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MCQ▾

Question

Bernoulli’s equation is a statement of

Choices

Choice (5)Response

a.

Conservation of linear momentum in fluid flow

b.

The property of laminar flow of fluids

c.

Conservation of mass in fluid flow

d.

Conservation of energy in fluid flow

e.

Question does not provide sufficient data or is vague

Question number: 396

» Magnetic Field & Electromagnetism

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Question

In the illustration, the smaller air-core solenoid (coil of wire) on the left is inserted into the larger air-core solenoid on the right without allowing any of the connecting wires to touch. The larger solenoid is connected to a battery, but the smaller solenoid is connected only to an ammeter to read the current in the smaller solenoid. After the smaller solenoid is inside the larger one, the current is turned on. What is observed on the ammeter?

Two different sized solenoids

Two Different Sized Solenoids

Choices

Choice (5)Response

a.

The ammeter will have a reading as the power is turned on, but the reading will quickly drop to zero again.

b.

The ammeter will not have a reading, because the axis of the smaller solenoid is in the same direction as the axis of the larger solenoid.

c.

The ammeter will have a reading as long as the power is turned on to the larger solenoid, since current is induced in the smaller solenoid by the magnetic field of the larger solenoid.

d.

The ammeter will not have a reading, because the smaller solenoid is not connected to a power supply.

e.

Question does not provide sufficient data or is vague

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