Grade 12Magnetism
Hi. I have three questionns to ask. - A very close point on the axis foo a current carrying circular coil (x
(a) R/10^1/2(b) R/30^1/2(C) R/50^1/2(d) R/150^1/2 2. A charge +2q moves vertically upwards with speed v, a second charge -q moves horizontally to the right with the same speed v, and a third charge +q moves horizontal to the right with the same speed v. The point P is located a perpendicular distance a away from each charge as shown in the figure. The magnetic field at P is .. Here’s the diagram: -q ----------> v|| ^ v| || |. P ----------o +2q | | | o---------> v (+q) Answer is :Out of the page with magnitude u(naught) 4qv/4pia^2 - The equation of line on which magnetic field is zero due to system of two perpendicular infinitely long current carryng straight wire is :-
^ +Y axis | | (current flowing thru here is 3I) | |---------------------------------------------------------> x | (current flowing in +x is I) | | The answer is x=3y
Hi. I have three questionns to ask.
- A very close point on the axis foo a current carrying circular coil (x
(a) R/10^1/2
(b) R/30^1/2
(C) R/50^1/2
(d) R/150^1/2
2. A charge +2q moves vertically upwards with speed v, a second charge -q moves horizontally to the right with the same speed v, and a third charge +q moves horizontal to the right with the same speed v. The point P is located a perpendicular distance a away from each charge as shown in the figure. The magnetic field at P is ..
Here’s the diagram:
-q ----------> v
|
| ^ v
| |
| |
. P ----------o +2q
|
|
|
o---------> v (+q)
Answer is :
Out of the page with magnitude u(naught) 4qv/4pia^2
- The equation of line on which magnetic field is zero due to system of two perpendicular infinitely long current carryng straight wire is :-
^ +Y axis
|
| (current flowing thru here is 3I)
|
|
---------------------------------------------------------> x
| (current flowing in +x is I)
|
|
The answer is x=3y
