Title: Unit 1 Quiz
Course: SGRD 105 Microgrids and Renewable Energies > Section: SGRD 105 Microgrids and Renewable Energies

Q: Flow of charge from high voltage to low voltage is called
- Electric field
- Current
- Inductance
- Capacitance
A: Current

Q: 1. As wire gauge decreases (cross-sectional area increases), the wire resistance
- increases
- decreases
- remains the same
- drops to zero
A: decreases

Q: 1. A 240 V power supply delivers 2.0 A of current to a motor. The power supplied to the motor
- 480 W
- 120 W
- 240 W
- 360 W
A: 480 W

Q: 1. Series circuits
- have a single resistor
- have the same potential across each component
- have the same current through each component
- dissipate the same power across each resistor
A: have the same current through each component

Q: A 2.5 kΩ and a 3.5 kΩ resistor are connected in series with a 240 V power supply. Calculate the total current for the circuit.
- 40. mA
- 96. mA
- 25. mA
- 68. mA
A: 40. mA

Q: Parallel circuits
- have a single resistor
- have the same potential across each component
- have the same current through each component
- dissipate the same power across each resistor
A: have the same potential across each component

Q: Resistors with resistances 5.00 Ω and 10.0 Ω are connected in parallel across a battery with voltage 12.0 V. The power dissipated in the 10.0 Ω resistor is
- 14.4 W
- 28.8 W
- 12.0 W
- 24.0 W
A: 14.4 W

Q: The primary difference between direct and alternating current is
- alternating current produces less wire losses
- direct current periodically changes direction
- direct current produces less wire losses
- alternating current periodically changes direction
A: alternating current periodically changes direction

Q: An AC voltage has an amplitude of 12 V. The effective (rms) voltage is
- 8.49 V
- 12 V
- 16.97 V
- 6 V
A: 8.49 V

Q: The average power dissipated by a light bulb is 60 W. The effective voltage across the bulb is 240 V. The effective current through the bulb is
- 4.0 A
- 2.83 A
- 0.250 A
- 0.177
A: 0.250 A