Magnetic Force Calculations and Circuit Analysis: Key Concepts and Formulas

What is the magnitude of the magnetic force on segment ab?

The magnitude is zero.

What is the magnitude of the magnetic force on segment bc?

0.0405 N

What is the direction of the magnetic force on segment bc?

Negative x

What is the magnitude of the magnetic force on segment cd?

0.0405 N

What is the direction of the magnetic force on segment cd?

Negative z

What is the magnitude of the magnetic force on segment da?

0.0573 N

What is the direction of the magnetic force on segment da?

Parallel to x-z plane at 45° to both +x and +z directions

What formula is used to calculate the magnetic force on each segment?

F = BILsin(θ)

What is the value of the current I in the wire segments?

4.82 A

What is the magnitude of the magnetic field B?

0.0200 T

What rule is used to determine the direction of the magnetic force?

The right-hand rule

What is the length of each wire segment L?

0.420 m

What is the potential difference between points a and b in the circuit?

3.44 V

What is the current in the 20.0-Ω resistor?

0.149 A

What is the voltage supplied by the battery with no internal resistance?

7.40 V

What is the current in the battery when the switch is open?

1.00 mA