At what distance from a long straight wire carrying a current of 5.0 A is the magnitude of the magnetic field due to the wire equal to the strength of the Earth's magnetic field of about 5.0 × 10-5 T?
A)
1.0 cm
B)
2.0 cm
C)
3.0 cm
D)
4.0 cm
E)
5.0 cm
B
You might also like to view...
An electron has a kinetic energy that is twice its rest energy. Determine its speed
a. 0.76 c b. 0.81 c c. 0.94 c d. 0.54 c e. 0.87 c
LR Circuits: A series circuit consists of an open switch, an ideal emf source ?0, a 5.0-k? resistor, and a 4.0-H inductor. If the potential across the resistor is 65.0 V at 2.0 ms after the switch is closed, find the source emf, ?0.
A. 71 V B. 36 V C. 76 V D. 56 V
If the "half life" for Radium-226 is 1600. years, how long is the "quarter life"?
What will be an ideal response?
What do we mean when we say that a particle is weakly interacting?
A) It interacts with other particles only through the weakest force, gravity. B) It interacts only with other weak particles, such as neutrinos. C) It doesn't interact with any type of baryonic matter. D) It interacts with other particles only through the weak force. E) It interacts with other particles only through the weak force and the force of gravity.