Ac is better than dc for doing what?
- Correct Answer: stopping electrical ebergy
- cooking electrcal energy
- storing electrical energy
- transporting electrcal energy
Explanation: Alternating Current (AC): Voltage pushes (so current flows) in alternate directions, back and forth. In the US they reverse direction 60 times a second (60 Hz). AC is more convenient than DC for transporting electrical energy. Below is a plot of voltage vs. time for a standard circuit in the USA.
More Random Questions
Q: What does a broken white line on the road mean?
Ans: Overtaking allowed
Ans: Overtaking allowed
Q: When explosion of gases creates pressure resulting in motion of a rocket, the force pushing the rocket is called what?
Ans: temperature
Ans: temperature
Q: In modern surgery, which condition is treated with a gastrectomy?
Ans: Stomach cancer
Ans: Stomach cancer
Q: What are the two components of all solutions?
Ans: concentration and solvent
Ans: concentration and solvent
Q: What was the impact of Trump’s policies on Europe in March 2025?
Ans: Economic growth
Ans: Economic growth
Q: On May 12, 2024, which organization adopted the first law to combat violence against women?
Ans: European Union
Ans: European Union
Q: What medal did Anuya Prasad win in the 2024 World Deaf Shooting Championship?
Ans: Gold
Ans: Gold
Q: What happens when ionic compounds are dissolved in water?
Ans: conduct electricity
Ans: conduct electricity
Q: What is the primary site of gas exchange in lungs?
Ans: Alveoli
Ans: Alveoli
Q: Which city has been named 'World Crafts City' by the World Crafts Council on August 2, 2024?
Ans: Srinagar
Ans: Srinagar
Q: Digestive enzymes are released, or secreted, by the organs of which body system?
Ans: endocrine system
Ans: endocrine system
Q: Where did the Indian Navy deploy its first training squadron on October 7, 2024?
Ans: Oman
Ans: Oman
Q: In Sharanghadhara Samhita, the proportion for Lavana Kalpana is:
Ans: 1 part drug, 5 parts salt, heated
Ans: 1 part drug, 5 parts salt, heated
Q: How did seismologists originally measure the intensity of an earthquake?
Ans: mercalli scale
Ans: mercalli scale
Q: Many species of flowering plants have coevolved with specific what?
Ans: pollinators
Ans: pollinators

