101-200 4001

How many neutrons does a copper atom have?

• 32

• 33

• 34

• 29

Bonding of atoms that is due to the force of attraction between positive ions and a group of negative ions.

• Ionic bonding

• Covalent bonding

• Electrostatic bonding

• Metallic bonding

An alloy of 22 percent iron and 78 percent nickel.

• Permalloy

• Alnico

• Constantan

• Manganin

An alloy of 40 percent iron and 60 percent nickel.

• Alnico

• Permalloy

• Hipernik

• Manganin

A commercial alloy of aluminum, nickel, and iron with cobalt, copper and titanium added to produce about 12 grades.

• Alnico

• Brass

• Aluminum

• Constantan

The idea of preventing one component from affecting another through their common electric and magnetic field is referred to as _______.

• Hall effect

• grounding

• shielding

• limiting

The physical motion resulting from the forces of magnetic fields is called ______.

• motor action

• rotation

• repulsion

• torque action

Flux linkages equals:

• flux times area of core

• flux times number of turn times area of core

• flux times numbers of turns times length of core

• flux times number of turns

Which of the following is a vector quantity?

• Magnetic potential

• Magnetic field intensity

• Magnetic permeability

• Flux density

Which of the following electric quantities is vector in character?

• Field

• Charge

• Energy

• Potential difference