Author Question: A coil with a self-inductance of 6.0 H has a constant current of 2.0 A flowing through it for 2.0 s. ... (Read 55 times)

bb · **on:** Jul 29, 2018

A coil with a self-inductance of 6.0 H has a constant current of 2.0 A flowing through it for 2.0 s. What is the emf induced in this coil?

A) 6.0 V
B) 12 V
C) 0.0 V
D) 4.0 V
E) 8.0 V

Question 2

Suppose you were to try to create a proton-antiproton pair by annihilation of two very high-energy gamma rays of the same wavelength heading toward each other. The proton and the anti-proton have the same masses, but opposite charges.

What would be the minimum energy needed for each photon? (e = 1.60 10-19 C, mproton = 1.67 10-27 kg, c = 3.00 108 m/s)
A) 223 MeV B) 1880 MeV C) 12.2 MeV D) 1.022 MeV E) 939 MeV