(A) 900 (B) 1440 Q7: A proton starts moving from rest in a region of uniform electric field (E = 7 × 104 N/C). What is the displacement of the proton after 1.5 μs, in m? (A) 7.5 (B) 6.5 (C) 8.6 (D) 5.4 ad obiects in Figure (a) is +Q₂
(A) 900 (B) 1440 Q7: A proton starts moving from rest in a region of uniform electric field (E = 7 × 104 N/C). What is the displacement of the proton after 1.5 μs, in m? (A) 7.5 (B) 6.5 (C) 8.6 (D) 5.4 ad obiects in Figure (a) is +Q₂
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Physics, pleaseeeeeeeee solve question 7
![**Physics Multiple-Choice Questions**
**Q1:** An electron has a velocity of \(6 \times 10^6 \, \text{m/s}\) in the positive \(x\)-direction at a point where the magnetic field has the components \(B_x = 3T\), \(B_y = 2.5T\). What is the magnitude of the magnetic force acting on the electron, in \(10^{-12} \, \text{N}\)?
- (A) 2.88
- (B) 2.40
- (C) 1.44
- (D) 1.92
**Q2:** A charged 12mF capacitor is discharged through a 55kΩ resistor, when will the capacitor and the resistor have the same potential? in seconds:
- (A) 346.6
- (B) 582.2
- (C) 249.5
- (D) 457.5
**Q3:** A proton is moving in the positive \(y\)-direction in a region where the magnetic field is in the positive \(z\)-direction, what is the direction of the magnetic force?
- (A) -\(\hat{k}\)
- (B) +\(\hat{i}\)
- (C) +\(\hat{k}\)
- (D) -\(\hat{i}\)
**Q4:** Find the current passes through the battery, \(\Delta V = 20V\), If \(R = 2\Omega\)?
![Circuit Diagram](https://example.com/circuit-diagram)
- (A) 2.14
- (B) 2.86
- (C) 4.29
- (D) 3.57
**Q5:** A charged insulating sphere has charge \(q\) and radius \(R\). The magnitude of the electric field at the point where \(r > R\) is equal to?
- (A) \(\frac{qr}{4\pi \epsilon_0 R^2}\)
- (B) \(\frac{kq}{r^2}\)
- (C) \(\frac{kqR}{r^3}\)
- (D) \(\frac{kqR^2}{r}\)
**Q6:** A very long wire has a uniform](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fef69c0f0-33f5-460b-877e-74c574e20849%2Ff2badec3-f7e1-49d0-960d-2f113e5166b3%2Fwnz530o_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Physics Multiple-Choice Questions**
**Q1:** An electron has a velocity of \(6 \times 10^6 \, \text{m/s}\) in the positive \(x\)-direction at a point where the magnetic field has the components \(B_x = 3T\), \(B_y = 2.5T\). What is the magnitude of the magnetic force acting on the electron, in \(10^{-12} \, \text{N}\)?
- (A) 2.88
- (B) 2.40
- (C) 1.44
- (D) 1.92
**Q2:** A charged 12mF capacitor is discharged through a 55kΩ resistor, when will the capacitor and the resistor have the same potential? in seconds:
- (A) 346.6
- (B) 582.2
- (C) 249.5
- (D) 457.5
**Q3:** A proton is moving in the positive \(y\)-direction in a region where the magnetic field is in the positive \(z\)-direction, what is the direction of the magnetic force?
- (A) -\(\hat{k}\)
- (B) +\(\hat{i}\)
- (C) +\(\hat{k}\)
- (D) -\(\hat{i}\)
**Q4:** Find the current passes through the battery, \(\Delta V = 20V\), If \(R = 2\Omega\)?
![Circuit Diagram](https://example.com/circuit-diagram)
- (A) 2.14
- (B) 2.86
- (C) 4.29
- (D) 3.57
**Q5:** A charged insulating sphere has charge \(q\) and radius \(R\). The magnitude of the electric field at the point where \(r > R\) is equal to?
- (A) \(\frac{qr}{4\pi \epsilon_0 R^2}\)
- (B) \(\frac{kq}{r^2}\)
- (C) \(\frac{kqR}{r^3}\)
- (D) \(\frac{kqR^2}{r}\)
**Q6:** A very long wire has a uniform
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