A 120 Ω load is connected across an ideal voltage source with VS = 12 V. The voltage across the load
Options
A. is 0 V
B. is 12 V
C. is 120 V
D. cannot be determined
Correct Answer
is 12 V
More questions
1. You are measuring the current in a circuit that is operated on an 18 V battery. The ammeter reads 40 mA. Later you notice the current has dropped to 20 mA. How much has the voltage changed?
2. A certain amplifier has 600 Ω internal resistance looking from its output. In order to provide maximum power to a 4 Ω speaker, what turns ratio must be used in the coupling transformer?
7. One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is