PHY 2049 SI Final Exam Review w/ Logan

If a circuit has a current of 2A and it flows for 3 seconds, how much charge has passed?

• 6C

• 1.5C

• 5C

• 2C

If 4 Coulombs of charge pass through a wire in 2 seconds, what is the current?

• 8A

• 2A

• 4A

• 1A

Ohm's Law is given by which equation?

What is the total equivalent resistance of the circuit shown?

What happens to the current if the resistance is doubled and the voltage remains the same?

• It doubles

• It remains the same

• It halves

• It squares

Kirchhoff's Junction Rule states that...

• The total voltage around a loop is zero

• The sum of currents entering a junction equals the sum leaving it

• The sum of voltages entering a junction equals the voltages leaving it

• The total current around a loop is zero

Kirchhoff's Loop Rule states that...

• The total voltage around a loop is zero

• The sum of currents entering a junction equals the sum leaving it

• The sum of voltages entering a junction equals the voltages leaving it

• The total current around a loop is zero

Which of the following is true in a series circuit?

• The voltage remains the same.

• The charge/current stays the same.

• Both the voltage and current stay the same.

• Neither the voltage or current stay the same.

Which of the following is true in a parallel circuit?

• The voltage is the same across all branches.

• The charge/current is the same across all branches.

• Both the voltage and current are the same across all branches.

• Neither the voltage or current are the same across all branches.

What is the unit of magnetic field strength?

• V

• N

• T

• A