Force on a Moving Charge: A proton moving with a velocity of 4.0 × 104 m/s enters a magnetic field of 0.20 T. If the angle between the velocity of the proton and the direction of the magnetic field is 60°, what is the magnitude of the magnetic force on the proton? (e = 1.60 × 10-19 C)
A. 1.8 × 10-15 N
B. 0.60 × 10-15 N
C. 1.1 × 10-15 N
D. 2.2 × 10-15 N
E. 3.3 × 10-15 N
Answer: C
You might also like to view...
A step-up transformer steps up voltage by ten times. If voltage input is 120 volts, voltage output is
A) 60 V. B) 120 V. C) 1200 V. D) 12000 V. E) none of the above
The Bohr model pictures a hydrogen atom in its ground state as a proton and an electron separated by the distance a0 = 0.529 × 10?10 m. The electric potential created by the electron at the position of the proton is
A. ?13.6 V. B. +13.6 V. C. ?27.2 V. D. +27.2 V. E. +5.12 × 109 V.
There are ground-based telescopes much larger than Hubble, yet the HST still reveals the faintest objects yet seen. Explain
What will be an ideal response?
Changes in Earth's history are recorded
A) in the rock record. B) in magnetic tape at the bottom of the oceans. C) by rocks at the Library of Congress. D) Moon rocks.