EEUTI130 Midterm Exam-B Reviewer

In a series circuit, what is constant?

• Power

• Current

• Voltage

• Resistance

How much charge in Coulombs does one proton have?

• 6.24 × 10

• 6.24 × 10⁻¹

• 1.602 × 10⁴

• 1.602 × 10⁻¹⁹

A wire has an initial resistance of 8Ω. The wire is then drawn to a length that is half as long as before, while the total material in the wire remains unchanged. What is the resistance of the new wire?

• 32Ω

• 16Ω

• 4Ω

• 2Ω

The total charge entering a terminal is given by q = 7t^2 sin((pi*t)/4). Calculate the current at t = 0.6s:

• 6.11 A

• 6.11 mA

• 0.11 A

• 0.11 mA

Determine the total charge entering a terminal between t = 7s and t = 12s if the current passing the terminal is i(t) = 3t + 7t mA:

• 1717.5 C

• 1.72 C

• 1.72 mC

• -1717.5 mC

Calculate the total resistance:

• 10.91Ω

• 41.135Ω

• 44Ω

• 120Ω

Calculate the voltage drop at the 20Ω resistor:

• 0.1 V

• 2 V

• 5.45 V

• 0.27 V

How many meshes are there in the circuit?

• 1

• 2

• 3

• 4

Resistance approaches zero in the case of:

• Series circuit

• Parallel circuit

• Open circuit

• Short circuit

It is the measure of how easily electric current flows through a material:

• Conductivity

• Conductance

• Resistivity

• Inductance