Magnetic Field of a Long Wire: Two long parallel wires placed side-by-side on a horizontal table carry identical current straight toward you. From your point of view, the magnetic field at a point exactly between the two wires
A. points upward.
B. points downward.
C. points toward you.
D. points away from you.
E. is zero.
Answer: E
You might also like to view...
Two isotopes have the same
a. mass number b. neutron number c. atomic number d. quantum number e. none of the above
If the stable nuclei are plotted with neutron number vs. proton number, the curve formed by the stable nuclei does not follow the line N = Z. This is predicted by examining how the binding energy is influenced by
a. the volume of the nucleus. b. the size of the nuclear surface. c. the Coulomb repulsion. d. the proton-neutron mass difference.
It is possible that life exists on orphan planets, even though they do not orbit a star
Indicate whether the statement is true or false
A pure substance A having density of 800 kg/m^3 (56 lbm/ft^3) is diffusing into a binary mixture of A and B. If the velocity of A is 4 cm/hr (1.2 in/hr) into the mixture and the velocity of B is 3.6 cm/hr out of the mixture, what is the total bulk velocity? Assume that the density of pure B is 900 kg/m^3 (63 lbm/ft^3) and that the mixture density is 890 kg/m^3 (61 lbm/ft^3).
What will be an ideal response?