If more coils are added to an electromagnet it becomes?
- Correct Answer: stronger
- brighter
- lighter
- weaker
Explanation: The combined magnetic force of the magnetized wire coil and iron bar makes an electromagnet very strong. In fact, electromagnets are the strongest magnets made. An electromagnet is stronger if there are more turns in the coil of wire or there is more current flowing through it. A bigger bar or one made of material that is easier to magnetize also increases an electromagnet’s strength. At the following URL, you can see an animation demonstrating how these factors affect the strength of an electromagnet. http://www. schoolphysics. co. uk/animations/Electromagnet/index. html.
More Random Questions
Q: A patient post-appendectomy requires wound care. Which nursing action is most appropriate?
Ans: Keep wound clean and dry
Ans: Keep wound clean and dry
Q: What does antifreeze do to the boiling point of coolant?
Ans: raises it
Ans: raises it
Q: The preferred phase a substance adopts can change with temperature. at low temperatures, most substances are solids (only helium is predicted to be a liquid at absolute zero). as the temperature increases, those substances with very weak intermolecular forces become gases directly in a process called this?
Ans: sublimation
Ans: sublimation
Q: According to Acharya Sushruta, Swara upaghata is a lakshana found in which of the following disease:
Ans: Vataja Pratishyaya
Ans: Vataja Pratishyaya
Q: Why was local TV expected to face ad revenue challenges in 2025?
Ans: Increased competition from streaming
Ans: Increased competition from streaming
Q: What was the consumer confidence level in February 2025?
Ans: 19% improving
Ans: 19% improving
Q: Which of the following is a Purvarupa of Shotha as per Charaka?
Ans: Gurutva
Ans: Gurutva
Q: A patient with heart failure requires a diagnostic procedure. Which advanced procedure is used?
Ans: Cardiac catheterization
Ans: Cardiac catheterization
Q: Control rods containing nuclides that very strongly absorb neutrons are used to adjust what?
Ans: neutron flux
Ans: neutron flux
Q: Which rivers form the Sundarbans Delta?
Ans: Ganga-Brahmaputra
Ans: Ganga-Brahmaputra
Q: Who spread Buddhism to Sri Lanka?
Ans: Ashoka
Ans: Ashoka
Q: Which enzyme begins carbohydrate digestion?
Ans: Amylase
Ans: Amylase
Q: How did Trump’s approval rating compare to January 2025 in March 2025?
Ans: Increased
Ans: Increased
Q: Who is the head of the State Executive?
Ans: Governor
Ans: Governor
Q: What was the tax paid by farmers in Vedic times?
Ans: Bhaga
Ans: Bhaga
