A wire carries a 7.00-A current along the x-axis, and another wire carries a 6.00-A current along th

A wire carries a 7.00-A current along the x-axis, and another wire carries a 6.00-A current along the y-axis, as shown in the figure. What is the magnetic field at point P, located at x = 4.00 m, y = 3.00 m?

[mayashomarieh]

Thank you very much. I’ve been looking for a video explanation of how to find the direction of magnetic field (in or out the page) and I almost gave up. You literally explained it in 10 secs.

[ehsanullah]

Q 1:
A wire 50 cm long lying along the x axis carries a current of 0.5 A in the positive X direction through the magnetic field .In unit vector notation, what is the magnetic force on the wire ? Magnetic field is :

Q 2:
An electron in a TV camera tube is moving at 7.2x10^6 m/s in a magnetic field of strength 83.0 mT. (a)without knowing the direction of field, what can you say about the greatest and least magnitudes of the force acting on the electron due to field?
(b)At one point the electron has an acceleration of magnitude 4.90x10^14 nm/s^2.
What is the angle between the electron velocity and the magnetic field?
Hint: Use magnitude of charge (q=1.6x10^-19 C), mass of electron : 9.11x10^-31 kg, a= F/M
" sir kindly solve these two question in a day .Its my humble request "

[TheDJSyaheer]

Hey there sir, at 3:08, you said the r is respective to the current, but why did you out r1=3 instead of 4?

[deksterr]

I’m back thanks for being the Lebron of physics

[abhinishmandal]

Can’t we use Fleming right hand rule in it.

[reemaflynnrizk]

Hi there sir, why are r1 and r2 not correlated to I1 and I2 respectively? Thanks in advance.

[WanSyazlina]

can u explain why b2 must be negative ?

[shapedsilver]

I keep getting these wrong, getting confused, and after watching your video realize I made a simple arithmetic mistake that ruined the whole thing. lol