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# Test: Magnetic Field Due to an Electric Current

## 10 Questions MCQ Test Basic Electrical Technology | Test: Magnetic Field Due to an Electric Current

Description
This mock test of Test: Magnetic Field Due to an Electric Current for Electrical Engineering (EE) helps you for every Electrical Engineering (EE) entrance exam. This contains 10 Multiple Choice Questions for Electrical Engineering (EE) Test: Magnetic Field Due to an Electric Current (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Magnetic Field Due to an Electric Current quiz give you a good mix of easy questions and tough questions. Electrical Engineering (EE) students definitely take this Test: Magnetic Field Due to an Electric Current exercise for a better result in the exam. You can find other Test: Magnetic Field Due to an Electric Current extra questions, long questions & short questions for Electrical Engineering (EE) on EduRev as well by searching above.
QUESTION: 1

### If the flow of electric current is parallel to the magnetic field, the force will be ______

Solution:

Force is a cross product. A cross product involves the sine of the angle between them. If two quantities are parallel to each other, the angle between them is zero. Sin(0) is zero, hence force is zero.

QUESTION: 2

### The force existing between two infinite parallel conductors is inversely proportional to ________

Solution:

When current is flowing in two different conductors, the force between the two conductors is directly proportional to the product of the current in the two conductors and inversely proportional to the distance between the two conductors.

QUESTION: 3

### When the distance of operation between the two conductors increases, what happens to the force between the two conductors?

Solution:

When the distance of separation increases, the force between the two conductors decrease because force between two conductors is inversely proportional to the distance of separation between them.

QUESTION: 4

Which of the following is used to determine the direction of magnetic field in a current carrying conductor?

Solution:

The right hand thumb rule determines the direction of magnetic field in a current carrying conductor. The rule states that when we align our right thumb in the direction of the current and curl our fingers around it, the direction of our fingers is the direction of the magnetic field.

QUESTION: 5

According to Flemming’s left hand rule, the index finger denotes ________

Solution:

According to Flemming’s left hand rule, the index finger denotes the direction of magnetic field, the thumb denoted the direction of force and the middle finger denoted the direction of current.

QUESTION: 6

According to Flemming’s left hand rule, the middle finger denotes _________

Solution:

According to Flemming’s left hand rule, the index finger denotes the direction of magnetic field, the thumb denoted the direction of force and the middle finger denoted the direction of current.

QUESTION: 7

According to Flemming’s left hand rule, the thumb denotes _________

Solution:

According to Flemming’s left hand rule, the index finger denotes the direction of magnetic field, the thumb denoted the direction of force and the middle finger denoted the direction of current.

QUESTION: 8

The relation between the direction of force and the direction of magnetic field in a current carrying conductor is?

Solution:

When a conductor carries a certain value of current, the force developed in the conductor, the current in the conductor and the magnetic field in the conductor are mutually perpendicular to each other.

QUESTION: 9

The relation between the direction of current and the direction of magnetic field in a current carrying conductor is?

Solution:

When a conductor carries a certain value of current, the force developed in the conductor, the current in the conductor and the magnetic field in the conductor are mutually perpendicular to each other.

QUESTION: 10

The relation between the direction of current and the direction of force in a current carrying conductor is?

Solution:

When a conductor carries a certain value of current, the force developed in the conductor, the current in the conductor and the magnetic field in the conductor are mutually perpendicular to each other.