MATCH THE FOLLOWING COLUMN A
1. A material used for making electro magnets
2. A device which is essential in an electric bell
3. A material which does not allow electric current to pass
4.
A magnetic device used for finding geographic directions
5. A device which makes use of heating effect of electricity.
6. A device which makes use of magnetic effect of electricity.
COLUMN B
telephones
soft iron
water geyser
electromagnet
Plastic wire
Magnetic needle​

It is reasonable to assume that the bulk modulus of blood is about the same as that of water (2.2 gpa). as one goes deeper and deeper in the ocean, the pressure increases by 10000 pa for every meter below the surface. if a diver goes down 80.0 m in the ocean, by how much does each cubic centimeter of her blood change in volume? give the answer in cubic centimeters (actually one cubic centimeter equals one milliliter).

Which is an example of an exothermic process?

Two conductors, a and b, are each in the shape of a tetrahedron. but of different sizes. they are charged in the following manner: 1. tetrahedron a is charged from an electrostatic generator to charge q. 2. tetrahedron a is briefly touched to tetrahedron b. 3. steps 1 and 2 are repeated until the charge on tetrahedron b reaches a maximum value. if the charge on tetrahedron b was q/4 after the first time it touched tetrahedron a. what is the final charge qbmax on tetrahedron b?