Cracking the SAT Physics Subject Test

(abbreviated G); 1 G = 10−4 T. A charge +q = +6 × 10−6 C moves with speed v = 4 × 10^5 m/s through a magnetic field of strength ...

A particle of mass m and charge +q is projected with velocity v (in the plane of the page) into a uniform magnetic field B that ...

Since FB is always perpendicular to v, the particle will undergo uniform circular motion; FB will provide the centripetal force. ...

electric field, E, crossed with a perpendicular magnetic field, B. If E = 2 × 10^4 N/C and B = 0.5 T, what must be the speed of ...

Here’s How to Crack It Since the velocity of particle Y is parallel to the direction of B, particle Y feels no magnetic force (t ...

THE MAGNETIC FORCE ON A CURRENT-CARRYING WIRE Since magnetic fields affect moving charges, they should also affect current- carr ...

Here’s How to Crack It The total magnetic force on the wire is equal to the sum of the magnetic forces on each of the three sect ...

A rectangular loop of wire that carries a current I is placed in a uniform magnetic field, B, as shown in the following diagram ...

Here’s How to Crack It Ignoring the tiny gap in the vertical left-hand wire, we have two wires of length ℓ 1 and two of length ℓ ...

If the loop is free to rotate, then each of these two forces exerts a torque that tends to turn the loop in such a way that the ...

MAGNETIC FIELDS CREATED BY CURRENT- CARRYING WIRES As we said at the beginning of this chapter, the source of magnetic fields ar ...

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The following diagram shows a proton moving with velocity v 0 , initially parallel to, and above, a long, straight wire. If the ...

The following diagram shows a pair of long, straight, parallel wires, separated by a small distance, r. If equal currents are e ...

1 and B 2 is counter-clockwise around Wire 2. Therefore, at point P, B 1 points upward and B 2 points downward. Since B is propo ...

Chapter 12 Comprehensive Drill See Chapter 17 for solutions. Which of the following is/are true concerning magnetic forces and ...

(A) To the right (B) Downward, in the plane of the page (C) Upward, in the plane of the page (D) Out of the plane of the page (E ...

circular motion within a uniform magnetic field, B. If the charge is q and the radius of its path is r, which of the following e ...

(A) To the left, in the plane of the page (B) Upward, in the plane of the page (C) Downward, in the plane of the page (D) Out of ...

Key Terms magnetic fields tesla (T) gauss (G) magnetic force right-hand rules ...