Physics 227/232 ODU Fall 2017 D.P. Weygand November 7, 2017 Physics 227/232 ODU

Question

Physics 227/232 ODU Fall 2017 D.P. Weygand November 7, 2017 Physics 227/232 ODU Name 7) A point charge Q moves on the x-axis in the positive direction with a speed of 280 m/s A point Pis on they-axis at-= +70 mm. The magnetic field produced at the point P, as the charge moves through the origin, is equal to-0.30 T k. What is the charge Q? (110-4 × 10-7 T·m/A) A)-53 uC 2 B) +53 C D) +39 HC E) +26 C 8) A uniform magnetic field is applied perpendicular to the plane of a 60-turn circular coil with a radius of 6.0 cm and a resistance of 0.60 . If the magnetic field increases uniformly from 0.20 T to 1.8 Tin 0.20 s, what is the magnitude of the emf induced in the coil? A) 7.2 V B) 5.4 V C) 9.2 V D) 12 V E) 16 V

Explanation / Answer

Q1.
y = 70 mm = 0.07 m
Let's use a negative charge and Fleming's Left hand rule for the charge and the current.

For the charge as it passes the origin:
B = k*q*v / y^2 = -0.3*10^-6 k T

=> q = -53*10^-6 C

Pls post other ques separately.

Related Questions

Navigate

• Browse (All)
• Browse P
• Subjects

---