Introduction to SAT II Physics

If the particle is to move at a constant velocity, then the leftward electric force must be equal in magnitude to the rightward ...

CHARGES MOVING IN A MAGNETIC FIELD create an electric field, just as charges moving in an electric field create a magnetic field ...

flowing in the counterclockwise direction, up the bar and then around the metal rail back to the bottom of the bar. This is call ...

The unit of flux is the weber (Wb), where 1 Wb = 1 T · m^2. Changing Magnetic Flux As we will see shortly, is more important tha ...

Next, let’s calculate the flux through the square after it’s rotated. Now we have to take into account the fact that the square ...

The square in the previous example, with sides of length 2 m and in a magnetic field of strength 10 T, is rotated by 60º in the ...

Remember that field lines come out of the north (N) pole of a magnet. As the magnet moves closer to the loop, the flux in the do ...

Applications Electromagnetic induction is important to humans because it is useful. SAT II Physics has been known to ask questio ...

Magnetic Flux Faraday’s Law / Lenz’s Law Emf Induced in a Transforme r Practice Questions 1.. A bar magnet is moving downward, s ...

2.. A bar of length 2 cm slides along metal rails at a speed of 1 cm/s. The bar and rails are in a magnetic field of 2 T, pointi ...

5.. A wire carrying 5.0 V is applied to a transformer. The primary coil has 5 turns and the secondary coil has 10 turns. What is ...

C The relationship between the voltage in a primary coil and in a secondary coil is given by the formula: Since the primary ha ...

In this equation, A is the amplitude, f is the frequency, and T is the period of the oscillation. It is useful to think of each ...

Think of waves as a means of transmitting energy over a distance. One object can transmit energy to another object without eithe ...

Ernst attaches a stretched string to a mass that oscillates up and down once every half second, sending waves out across the str ...

There are two major kinds of waves: transverse waves and longitudinal waves. The medium transmitting transverse waves oscillates ...

A string is tied to a pole at one end and 100 g mass at the other, and wound over a pulley. The string’s mass is 100 g, and it i ...

When the string on a violin, the surface of a bell, or the paper cone in a stereo speaker oscillates rapidly, it creates pulses ...

other. The principle of superposition tells us that waves cannot affect one another: one wave cannot alter the direction, freque ...

EXAMPLE Modern orchestras generally tune their instruments so that the note “A” sounds at 440 Hz. If one violinist is slightly o ...