Examlex
A flat circular coil has 250 identical loops of very thin wire. Each loop has an area of 0.12 m2 and carries 15 mA of current. This coil is placed in a magnetic field of 0.050 T oriented at 30° to the plane of the loop. What is the magnitude of the magnetic moment of the coil?
Q37: What is the rms current through a
Q38: Two identical small charged spheres are
Q44: A tube of mercury with resistivity 9.84
Q82: An air-filled 20-μF capacitor has a charge
Q92: A 6.0-Ω and a 12-Ω resistor are
Q106: An ideal parallel-plate capacitor consists of two
Q106: A flat circular loop of radius 0.10
Q111: A 9.00-µF and a 12.0-µF capacitor are
Q123: For a beam of light, the direction
Q126: The network shown is assembled with