(Be clear and concise. Typing work is strongly suggested. Will thumps up dependi

Question

(Be clear and concise. Typing work is strongly suggested. Will thumps up depending on the quality of work done.) A negatively charged ion moves due north with a speed of 2.2 Times 10^6 m/s at the Earth's equator. What is the magnetic force exerted on this ion? An 89-ohm resistor has a current of 0.51 A and is connected in series with a 130-ohm resistor. What is the emf of the battery to which the resistors are connected? Find the power dissipated in a 39-ohm electric heater connected to a 120-V outlet.

Explanation / Answer

1a)
q = 1.6 * 10^-19 C
v = 2.2 * 10^6 m/s
= 0
F = q*v*B*sin()
F = 0 N

1b)
Req = 89 + 130 = 219 ohm
V = I*Req
V = 0.51 * 219 V
V = 111.7 V
Emf of the battery to which Resistors are connected, V = 111.7 V

1c)
Power dissipated in Resistor is given by,
P = V^2/R
P = 120^2/39 W
P = 369.2 W

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

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