A solenoid or coil wrapped around iron or certain other metals can form what kind of magnet?
- Correct Answer: electromagnet
- polarized magnet
- permanent magnet
- superconductor
Explanation: An electromagnet is a solenoid wrapped around a bar of iron or other ferromagnetic material. The magnetic field of the solenoid magnetizes the iron bar.
More Random Questions
Q: Where did the 23rd National Athletics Championship 2024 for the Blind start on December 14, 2024?
Ans: Nadiad (Gujarat)
Ans: Nadiad (Gujarat)
Q: What is a mixture of a solute in a solvent called?
Ans: transition
Ans: transition
Q: What type of fossils are useful for determining the ages of rock layers?
Ans: index fossils
Ans: index fossils
Q: Who has won the ICC Women's T20 World Cup?
Ans: New Zealand
Ans: New Zealand
Q: What is the Doppler Effect?
Ans: Change in wave frequency
Ans: Change in wave frequency
Q: What does the PM-KISAN scheme provide?
Ans: Rs. 6
Ans: Rs. 6
Q: Which enzyme in saliva digests carbohydrates?
Ans: Amylase
Ans: Amylase
Q: What was the annualized GDP growth rate for the USA in Q1 2025?
Ans: -0.3%
Ans: -0.3%
Q: On what basis are the eras of the phanerozoic eon separated?
Ans: mass extinctions
Ans: mass extinctions
Q: About what percentage of the earth's water is fresh water?
Ans: thirty percent
Ans: thirty percent
Q: Where was the 'Jal-Jagar Mahotsav' organized?
Ans: Chhattisgarh
Ans: Chhattisgarh
Q: Which fluid is used in hydraulic brakes?
Ans: Brake fluid
Ans: Brake fluid
Q: Which Bihar city hosts the Sonepur Cattle Fair?
Ans: Hajipur
Ans: Hajipur
Q: Most insects reproduce quickly and through what type of reproduction?
Ans: asexual reproduction
Ans: asexual reproduction
Q: An extensive property is a property that depends on the amount of what in a sample?
Ans: matter
Ans: matter
