Learn direct current and alternating current MCQs in physics quiz for test prep. Current electricity quiz questions has multiple choice questions (MCQ), direct current and alternating current test as the wire maintained at zero potential by connecting it to earth at power station itself is called. Answer key help with choices as earth/ground wire, livewire, neutral wire and delta wire problem solving for competitive exam, viva prep, interview questions worksheets. Free physics revision notes to practice direct current and alternating current quiz with MCQs to find questions answers based online tests.

MCQ. The wire maintained at zero potential by connecting it to the Earth at the power station itself is called

1. Earth/ground wire
2. livewire
3. neutral wire
4. delta wire

C

MCQ. The current produced by AC generators is

1. alternative current
2. fixed current
3. negative current
4. direct current

A

MCQ. The time interval after which the alternative current voltage or current repeats its value is called its

1. frequency
2. time period
3. amplitude
4. wavelength

B

MCQ. The positive and negative terminals of direct current have

1. no polarity
2. fixed polarity
3. variable polarity
4. always negative polarity

B

MCQ. The potential difference between the live wire and the neutral wire is

1. 180 V
2. 320 V
3. 250 V
4. 220 V

D