An electromagnet has a soft iron core. It is a type of magnet in which the magnetic field is produced by an electric current.
90) An electro-magnet has
Answer is:
Soft Iron core
Explanation:
Related RRB JE Mechanical Question Paper 2014 (Set-3) with Answer Key
Answer is:
Malleability
Explanation:
Malleability is a property of a material enabling it to be drawn into thin sheets.
Ductility is a property of a material enabling it to be drawn into wires.
Answer is:
6
Explanation:
2×3×4=24, which is divisible by 6
9×10×11=990, which is divisible by 6
20×21×22=9240, which is divisible by 6.
Hence the statement the product of three consecutive numbers is always divisible by 6 is verified