Hi friends, these are some of the multiple choice questions on electrical and magnetic properties. These are some of the basic questions which are asked in previous competitive papers check out and comment...
1) How many neutrons does a copper atom have?
A) 32
B) 33
C) 34
D) 29
Ans:C
2) Bonding of atoms that is due to the force of attraction between positive ions and a group of negative ions
A) Ionic bond
B) Covalent Bond
C) Electrostatic Bond
D) Metallic bond
Ans:D
3) An alloy of 22 percent iron and 78 per cent nickel.
A) Permalloy
B) Alnico
C) Constantan
D) Manganin
Ans:A
4) An alloy of 40 percent iron and 60 percent nickel.
A) Alnico
B) Permalloy
C) Hipernik
D) Manganin
Ans:C
5) A commercial alloy of aluminum nickel, and iron with cobalt, copper and titanium added to produce about 12 grades.
A) Alnico
B) Brass
C) Aluminum
D) Constantan
Ans:A
6) The idea of preventing one component from affecting another through their common electric and magnetic field is referred to as
A) Hall effect
B) Grounding
C) Shielding
D) Limiting
Ans:C
7) The physical motion resulting from the forces of magnetic fields is called
A) Motor action
B) Rotation
C) Repulsion
D) Torque action
Ans:A
8) Flux linkages equals
A) Flux times area of core
B) Flux times number of turns times area of core
C) Flux times number of turns times length of core
D) Flux times number of turns
Ans:D
9) Which of the following is a vector quantity?
A) Magnetic potential
B) Magnetic field intensity
C) Magnetic permeability
D) Flux density
Ans:B
10) Which of the following electric quantities is vector in character?
A) Field
B) Charge
C) Energy
D) Potential Difference
Ans:A
1) How many neutrons does a copper atom have?
A) 32
B) 33
C) 34
D) 29
Ans:C
2) Bonding of atoms that is due to the force of attraction between positive ions and a group of negative ions
A) Ionic bond
B) Covalent Bond
C) Electrostatic Bond
D) Metallic bond
Ans:D
3) An alloy of 22 percent iron and 78 per cent nickel.
A) Permalloy
B) Alnico
C) Constantan
D) Manganin
Ans:A
4) An alloy of 40 percent iron and 60 percent nickel.
A) Alnico
B) Permalloy
C) Hipernik
D) Manganin
Ans:C
5) A commercial alloy of aluminum nickel, and iron with cobalt, copper and titanium added to produce about 12 grades.
A) Alnico
B) Brass
C) Aluminum
D) Constantan
Ans:A
6) The idea of preventing one component from affecting another through their common electric and magnetic field is referred to as
A) Hall effect
B) Grounding
C) Shielding
D) Limiting
Ans:C
7) The physical motion resulting from the forces of magnetic fields is called
A) Motor action
B) Rotation
C) Repulsion
D) Torque action
Ans:A
8) Flux linkages equals
A) Flux times area of core
B) Flux times number of turns times area of core
C) Flux times number of turns times length of core
D) Flux times number of turns
Ans:D
9) Which of the following is a vector quantity?
A) Magnetic potential
B) Magnetic field intensity
C) Magnetic permeability
D) Flux density
Ans:B
10) Which of the following electric quantities is vector in character?
A) Field
B) Charge
C) Energy
D) Potential Difference
Ans:A
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