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# Electromagnetism Online Exam Quiz

Important questions about Electromagnetism. Electromagnetism MCQ questions with answers. Electromagnetism exam questions and answers for students and interviews.

### What is the magnetic field outside a solenoid?

Options

A : a. Infinity

B : b. Half the value of the field inside

C : c. Double the value of the field inside

D : d. Zero

### Which, among the following qualities, is not affected by the magnetic field?

Options

A : a. Moving charge

B : b. Change in magnetic flux

C : c. Current flowing in a conductor

D : d. Stationary charge

### When a charged particle moves at right angles to the magnetic field, the variable quantity is?

Options

A : a. Momentum

B : b. Speed

C : c. Energy

D : d. Moment of inertia

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

Options

A : a. Zero

B : b. Infinity

C : c. Maximum

D : d. Half the original value

Options

A : a. 1

B : b. 0

C : c. 2

D : d. 4

### What is the strength of magnetic field known as ________

Options

A : a. Flux

B : b. Density

C : c. Magnetic strength

D : d. Magnetic flux density

### Weakest force in nature is?

Options

A : a. Electric force

B : b. Gravitational force

C : c. Weak force

D : d. Magnetic force

### How can a magnetic field be produced?

Options

A : a. Using a permanent magnet

B : b. Electric current

C : c. Using a temporary magnet

D : d. Using a permanent magnet or electric current

### Can we see magnetic flux lines?

Options

A : a. Yes

B : b. No

C : c. Depends on the strength of the field

D : d. Only when the field strength is very large

### Magnetic Field lines move from _______

Options

A : a. North to south

B : b. South to north

C : c. West to east

D : d. East to west

### Field lines move from __________

Options

A : a. North to south

B : b. South to north

C : c. West to east

D : d. East to west

### Magnetic field lines ___________ at the north pole.

Options

A : a. Emerge

B : b. Converge

C : c. Neither emerge nor converge

D : d. Either emerge or converge

### Magnetic field lines ___________ at the south pole.

Options

A : a. Emerge

B : b. Converge

C : c. Neither emerge nor converge

D : d. Either emerge or converge

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

Options

A : a. Left hand thumb rule

B : b. Right hand thumb rule

C : c. Right hand palm rule

D : d. Left hand palm rule

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

Options

A : a. Direction of magnetic field

B : b. Direction of current

C : c. Direction of force

D : d. Direction of force as well as current

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

Options

A : a. Direction of magnetic field

B : b. Direction of current

C : c. Direction of force

D : d. Direction of force as well as current

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

Options

A : a. Direction of magnetic field

B : b. Direction of current

C : c. Direction of force

D : d. Direction of force as well as current

### The relation between the direction of force and the direction of magnetic field is _________

Options

A : a. Same direction

B : b. Opposite direction

C : c. Perpendicular

D : d. Unrelated

### The relation between the direction of current and the direction of magnetic field is ________

Options

A : a. Same direction

B : b. Opposite direction

C : c. Perpendicular

D : d. Unrelated

### The relation between the direction of current and the direction of the force is _________

Options

A : a. Same direction

B : b. Opposite direction

C : c. Perpendicular

D : d. Unrelated

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