A long solenoid (radius = 3.0 cm, 2 500 turns per meter) carries a current given by I = 0.30 sin(200 t) A, where t is measured in s. When t = 2.5 ms, what is the magnitude of the induced electric field at a point which is 4.0 cm from the axis of the solenoid?
a. 9.3 × 10^?3 V/m
b. 8.0 × 10^?3 V/m
c. 6.7 × 10^?3 V/m
d. 5.3 × 10^?3 V/m
e. 1.9 × 10^?3 V/m
e
You might also like to view...
If you measure a parallax of 0.006 arc seconds from an observatory on the ground, your uncertainty will be about _____
A) 10 percent B) 75 percent C) 30 percent D) 57 percent
Resolution: A camera lens having a 50-mm focal length is set to f/4.0. What is the minimum spacing of two objects located 12 m from the lens if the objects are just barely resolved in the image using light of wavelength 500 nm?
A. 1.66 mm B. 4.72 mm C. 0.024 mm D. 4.9 × 10-5 m E. 0.59 mm
Which of the following physics quantity measures how fast an object is moving?
X-rays with a wavelength of 0.00100 nm are scattered by free electrons at 130°. What is the kinetic energy of each recoil electron?
What will be an ideal response?