Practice Exam 2 Phys 1402 Name: Section 2: Calculation Questions (8 pts. each pa

Question

Practice Exam 2 Phys 1402 Name: Section 2: Calculation Questions (8 pts. each part) 1. Consider the Earth's magnetic field at the equator as pointing directly north with a magnitude of B = 0.5 T. An electron (m, = 9.11 × 10-31 kg, qe-1.6 × 10-19 C) ?s ejected from the Sun and heads towards the Earth at a speed ofv 7x 105 m/s, perpendicular to the field as shown in Figure a. What is the magnitude of the force the electron feels when it enters the Earth's magnetic field? b. In which direction is the force? (Hint: there are six possible choices: North, South, East, West, towards the Earth's surface or away from the Earth surface) v-7 x 105 m/s 13 Figure 1

Explanation / Answer

(a) |F| = |q (v x B)| = |1.6*10-19C* 7*105m/s*0.5T| = 5.6*10-14 N

(b) Into the page

considering Right Hand Thumb Rule and negative charge force goes into the page.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.