Magnetic Field of a Solenoid Mcq
The magnetic field inside a solenoid is:
a) Zero
b) Uniform
c) Non-uniform
d) Varies with time
Answer: b) Uniform
The direction of the magnetic field inside a solenoid is:
a) From south pole to north pole
b) From north pole to south pole
c) Along the axis of the solenoid
d ) Perpendicular to the axis of the solenoid
Answer: c) Along the axis of the solenoid
The strength of the magnetic field inside a solenoid depends on:
a) The number of turns in the solenoid
b) The current flowing through the solenoid
c) The length of the solenoid
d) All of the above
Answer: d) All of the above
The magnetic field inside a solenoid can be increased by:
a) Increasing the resistance of the solenoid
b) Increasing the length of the solenoid
c) Decreasing the current flowing through the solenoid
d) Increasing the number of turns in the solenoid
Answer: d) Increasing the number of turns in the solenoid
The magnetic field outside a solenoid is:
a) Zero
b) Uniform
c) Non-uniform
d) Varies with time
Answer: a) Zero
The magnetic field inside a solenoid can be made stronger by:
a) Using a larger diameter wire for the solenoid
b) Using a smaller diameter wire for the solenoid
c) Increasing the length of the solenoid
d) Increasing the current flowing through the solenoid
Answer: d) Increasing the current flowing through the solenoid
The magnetic field inside a solenoid is proportional to:
a) The resistance of the solenoid
b) The length of the solenoid
c) The current flowing through the solenoid
d) The voltage applied to the solenoid
Answer: c) The current flowing through the solenoid
The magnetic field inside a solenoid is represented by:
a) Magnetic lines of force that are parallel to the solenoid’s axis
b) Magnetic lines of force that are perpendicular to the solenoid’s axis
c) Magnetic lines of force that form a helix around the solenoid
d) Magnetic lines of force that vary randomly within the solenoid
Answer: a) Magnetic lines of force that are parallel to the solenoid’s axis
The magnetic field inside a solenoid is strongest:
a) At the ends of the solenoid
b) In the middle of the solenoid
c) Along the sides of the solenoid
d) At the center of the solenoid
Answer: b) In the middle of the solenoid
The strength of the magnetic field inside a solenoid is measured in:
a) Amperes (A)
b) Volts (V)
c) Ohms (Ω)
d) Teslas (T)
Answer: d) Teslas (T)
The magnetic field inside a solenoid can be reversed by:
a) Changing the direction of the current
b) Changing the number of turns in the solenoid
c) Changing the length of the solenoid
d) Changing the voltage applied to the solenoid
Answer: a) Changing the direction of the current
The magnetic field inside a solenoid is independent of:
a) The number of turns in the solenoid
b) The current flowing through the solenoid
c) The length of the solenoid
d) The resistance of the solenoid
Answer: d) The resistance of the solenoid
The magnetic field inside a solenoid is influenced by:
a) Lenz’s law
b) Ampere’s law
c) Ohm’s law
d) Faraday’s law
Answer: b) Ampere’s law
The magnetic field inside a solenoid can be made weaker by:
a) Increasing the resistance of the solenoid
b) Decreasing the length of the solenoid
c) Increasing the current flowing through the solenoid
d) Decreasing the number of turns in the solenoid
Answer: d) Decreasing the number of turns in the solenoid
The magnetic field inside a solenoid can be turned off by:
a) Disconnecting the solenoid from the power source
b) Decreasing the length of the solenoid
c) Increasing the resistance of the solenoid
d) Decreasing the current flowing through the solenoid
Answer: a) Disconnecting the solenoid from the power source
The magnetic field inside a solenoid is affected by the presence of:
a) Ferromagnetic materials
b) Diamagnetic materials
c) Paramagnetic materials
d) All of the above
Answer: d) All of the above
The magnetic field inside a solenoid is similar to the magnetic field inside a:
a) Bar magnet
b) Capacitor
c) Resistor
d) Diode
Answer: a) Bar magnet
The magnetic field inside a solenoid is strongest when the solenoid is:
a) Short and thick
b) Long and thick
c) Short and thin
d) Long and thin
Answer: b) Long and thick
The magnetic field inside a solenoid can be focused by adding:
a) Iron core
b) Copper wire
c) Aluminum foil
d) Plastic casing
Answer: a) Iron core
The magnetic field inside a solenoid is used in:
a) Electric motors
b) Speakers
c) Transformers
d) All of the above
Answer: d) All of the above
The magnetic field inside a solenoid is affected by changes in:
a) Temperature
b) Humidity
c) Pressure
d) None of the above
Answer: d) None of the above
The magnetic field inside a solenoid can be shielded by using:
a) Aluminum foil
b) Plastic casing
c) Magnetic shielding material
d) Glass cover
Answer: c) Magnetic shielding material
The magnetic field inside a solenoid can be detected using:
a) A compass needle
b) A voltmeter
c) A thermometer
d) A ruler
Answer: a) A compass needle
The magnetic field inside a solenoid is affected by the presence of nearby:
a) Magnets
b) Metals
c) Electrical appliances
d) All of the above
Answer: d) All of the above
The magnetic field inside a solenoid can be controlled by adjusting:
a) The voltage applied to the solenoid
b) The length of the solenoid
c) The number of turns in the solenoid
d) The resistance of the solenoid
Answer: c) The number of turns in the solenoid