Choose the correct option: The magnetic field inside a long straight solenoid carrying current: (a) is zero. (b) decrease as we move towards its end. (c) increase as we move towards its end. (d) is the same at all points.
A
is zero
B
decreases as we move towards its end
C
increases as we move towards its end
D
is the same at all points
Text Solution
Verified by Experts
The correct Answer is:
D
Topper's Solved these Questions
MAGNETIC EFFECTS OF ELECTRIC CURRENT SCIENCE
NCERT|Exercise Solved Examples|2 Videos
LIGHT - REFLECTION AND REFRACTION
NCERT|Exercise Exercise|31 Videos
SOURCES OF ENERGY
NCERT|Exercise Exercise|24 Videos
Similar Questions
Explore conceptually related problems
The magnetic field near the centre of an infinite long straight current carrying conductor is ........ Than the magnetic field near one of the end points.
The magnetic flux density at a point distant d from a long straight current carrying conductor is B, then its value at distance d/2 will be-
A tightly- wound, long solenoid is kept with its axis parallel to a large metal sheet carrying a surface current. The surgace current through a width dl of the sheet is Kdl and the number of turns per unit length of the solenoid is n. The magnetic field near the centre of the solenoid is found to be zero. (a) find the current in the solenoid. (b) If the solenoid is rotated to make its axis perpendicular to the metal sheet, what would be the magnitude of the magnetic field near its centre?
(a)Using Ampere's circuital law,obtain the expression for the magnetic field due to a long solenoid at a point inside the solenoid on its axis. (b)In what respect is a toroid different from a solenoid?Draw and compare the pattern of the magnetic field lines in the two cases. (c)How is the magnetic field inside a given solenoid made strong?
Read the given statements and mark the correct option. Statement 1: Magnetic field inside a current carrying solenoid is greater than that of outside. Statement 2: Magnetic field at the centre of a current carrying circular loop is always zero.
The magnetic field inside a toroidal solenoid of radius R is B. If the current through it is doubled and its radius is also doubled, keeping the number of turns same, the magnetic field produced by it will be
NCERT-MAGNETIC EFFECTS OF ELECTRIC CURRENT SCIENCE-Solved Examples