Multiple Choice
A rectangular coil (0.20 m * 0.80 m) has 200 turns and is in a uniform magnetic field of 0.30 T.When the orientation of the coil is varied through all possible positions,the maximum torque on the coil by magnetic forces is 0.080 N . m.What is the current in the coil?
A) 5.0 mA
B) 1.7 A
C) 8.3 mA
D) 1.0 A
E) 42 mA
Correct Answer:

Verified
Correct Answer:
Verified
Q4: A long hollow cylindrical conductor (inner radius
Q7: A 0.50-m long solenoid consists of 1
Q49: A long straight wire (diameter = 2.0
Q73: What is the radius of curvature of
Q87: Two very long parallel wires carry currents
Q132: A straight wire (length = 8.0
Q133: A conducting rod with a square
Q135: Which diagram correctly shows the magnetic field
Q138: Two long parallel wires each carry
Q139: Two long straight wires carry currents