Update 2026) Physics | Questions &
Answers | Grade A | 100% Correct -
Portage Learning
What is the relationship between the cross-sectional area of a wire and its resistance? -
CORRECTANSWER Inverse Propotion
True or False: Direct current reverses direction at regular intervals. -
CORRECTANSWER False
For a collection of resistors that are connected in series, which of the following
statements is true? Assume that the resistance of each resistor is different. -
CORRECTANSWER a) The current through each resistor is the same
b) The equivalent resistance is equal to the sum of the individual resistances
c) The total voltage across the circuit is equal to the sum of the individual voltages
d) A,B, and C are true
True or False: Kirchhoff's Loop Rule states that the sum of the potential differences
around any closed loop in an electric circuit is always greater than the current in the
circuit. -CORRECTANSWER False. Kirchhoff's Loop Rule states that the sum of the
electric potential differences (voltages) around any closed loop is zero.
, For a collection of resistors that are connected in parallel, which of the following
statements is true? Assume that the resistance of each resistor is different. -
CORRECTANSWER The sum of the current through each resistor is equal to the total
current of the circuit
True or False: Kirchhoff's Junction Rule states that the sum of the current entering a
junction must equal the sum of the current exiting a junction. -CORRECTANSWER True
The circuit in Figure 8.T.5 contains two batteries and one resistor connected in series.
At which point is the current the largest? -CORRECTANSWER 2 Batteries in Series w/
Resistor Parallel
The current is the same at all of the points
The circuit in Figure 8.T.5 contains two batteries and one resistor connected in series.
At which point is the electric potential energy of the charges the largest? -
CORRECTANSWER 2 Batteries in Series w/ Resistor Parallel
Point C
Which of the following equations correctly applies Kirchhoff's Junction rule to the figure
below?
Current flows and splits into two and combines again -CORRECTANSWER B I2=I3