PHY 112 Exam 2 NAU Questions &
Answers (Grade A+)
Kirchhoff's law only applies to currents -
correct answer ✅false
Two identical bublbs in series will not have the same brightness -
correct answer ✅false
If two resistors, R1, R2 are in parallel then the equivalent resistance
is always less than either of R1 or R2's resistance -
correct answer ✅true
The amount of current in a circuit depends jointly on the battery's
emf and the resistance of the circuit attached to the battery -
correct answer ✅true
A nerve cell can be modeled as an RC circuit -
correct answer ✅true
As more resistors are added in parallel across a constant voltage
source, the power supplied by the source increases. -
correct answer ✅true
, PHY 112 Exam 2 NAU Questions &
Answers (Grade A+)
We observe that a moving charged particle experiences no
magnetic force. From this we can definitely conclude that no
magnetic field exists in that region of space -
correct answer ✅false
A ring with a clockwise current (as viewed from above the ring) is
situated with its center directly above another ring, which has a
counter-clockwise current, as shown in the figure. Is the direction
of the net magnetic force exerted on the top ring due to the bottom
ring upward? -
correct answer ✅true
Two long parallel wires are placed side-by-side on a horizontal
table. If the wires carry current in the same direction, do the wires
pull toward each other? -
correct answer ✅true
A charged particle is injected into a uniform magnetic field such
that its velocity vector is perpendicular to the magnetic field lines.
Ignoring the particle's weight, the particle will follow a circular path
-
correct answer ✅true
Answers (Grade A+)
Kirchhoff's law only applies to currents -
correct answer ✅false
Two identical bublbs in series will not have the same brightness -
correct answer ✅false
If two resistors, R1, R2 are in parallel then the equivalent resistance
is always less than either of R1 or R2's resistance -
correct answer ✅true
The amount of current in a circuit depends jointly on the battery's
emf and the resistance of the circuit attached to the battery -
correct answer ✅true
A nerve cell can be modeled as an RC circuit -
correct answer ✅true
As more resistors are added in parallel across a constant voltage
source, the power supplied by the source increases. -
correct answer ✅true
, PHY 112 Exam 2 NAU Questions &
Answers (Grade A+)
We observe that a moving charged particle experiences no
magnetic force. From this we can definitely conclude that no
magnetic field exists in that region of space -
correct answer ✅false
A ring with a clockwise current (as viewed from above the ring) is
situated with its center directly above another ring, which has a
counter-clockwise current, as shown in the figure. Is the direction
of the net magnetic force exerted on the top ring due to the bottom
ring upward? -
correct answer ✅true
Two long parallel wires are placed side-by-side on a horizontal
table. If the wires carry current in the same direction, do the wires
pull toward each other? -
correct answer ✅true
A charged particle is injected into a uniform magnetic field such
that its velocity vector is perpendicular to the magnetic field lines.
Ignoring the particle's weight, the particle will follow a circular path
-
correct answer ✅true
