Two long parallel wires carry unequal currents in opposite directions. The ratio of the currents is 3 to 1 . The magnitude of the magnetic field at a point in the plane of the wires and 10 cm from each wire is 4.0 ?T. What is the larger of the two currents?
a. 0.5 A
b. 1.0 A
c. 1.5 A
d. 2.0 A
e. 3.0 A
c
You might also like to view...
Why is the ozone layer in Earth's atmosphere important to life on its surface?
What will be an ideal response?
Which of the following could have been habitable if the Sun had been twice as massive?
A. Mercury B. Neptune C. Venus D. Pluto E. Jupiter's moons
A 3.0-kg block moves up a 40° incline with constant speed under the action of a 26-N force acting up and parallel to the incline. What magnitude force must act up and parallel to the incline for the block to move down the incline at constant velocity?
A. 14 N B. 12 N C. 16 N D. 18 N E. 25 N
A certain thermodynamic engine extracts 1.30 kJ of thermal energy from a hot temperature reservoir and discharges 0.70 kJ of energy to a cold temperature reservoir. What is the efficiency of this engine?
A) 46% B) 54% C) 86% D) 27% E) 13%