Magnetic field lines start from North pole and end at South pole.
Jesse Freeman
Answered question
2023-01-19
True or False
Answer & Explanation
hemelbol26w
Beginner2023-01-20Added 9 answers
Magnetic field lines are imaginary lines that circle a magnet and reveal the magnet's magnetic field pattern. These lines don't start or end. They form a closed loop. They flow from the North pole to the South pole outside the magnet and from the South pole to the North pole inside the magnet.
New Questions in Electromagnetism
The magnetic field inside a long straight solenoid carrying current
A)is zero
B)increases along its radius
C)increases as we move towards its ends
D)is the same at all pointsWhich of the following units is used to express frequency?
Hertz
Watt
Newton
PascalWhat does tangential force produce?
How Many Different Orbitals Are There?
What is value for electrons ?
Which of the following correctly describes the magnetic field near a long straight wire?
A. The field consists of straight lines perpendicular to the wire
B. The field consists of straight lines parallel to the wire
C. The field consists of radial lines originating from the wire
D. The field consists of concentric circles centered on the wireIs energy directly proportional to frequency?
What is a compass? How is a compass used to find directions?
Magnetic field lines never intersect each other because
There will be two directions of the field at the same point.
Feild lines repel each other
Field lines follow discrete paths only
If field lines intersect they create a new magnetic field within the existing fieldTwo parallel wires carry currents of 20 A and 40 A in opposite directions. Another wire carrying a current antiparallel to 20 A is placed midway between the two wires. The magnetic force on it will be
Towards 20 A
Towards 40 A
Zero
Perpendicular to the plane of the currentWhat is the wavelength of the light emitted when an electron in a hydrogen atom undergoes transition from the energy level n = 4 to energy level n = 2? What is the colour corresponding to their wavelengths? (Given )
A) 486 nm, Blue
B) 576 nm, Blue
C) 650, Blue
D) 450 nm, BlueTwo identical conducting spheres A and B are separated by a distance greater than their diameters the spheres carry equal charges and electrostatic force between them is F a third identical uncharged sphere C is first brought in contact with A, then with B and finally removed as a result, the electrostatic force between A and B becomes
Why is alternating current used in homes?
Which of the following radiation has the shortest wavelength.
X-ray
Infra red
microwave
ultravioletHow to find the local extrema for ?
