Pulling a rope in tug-of-war
Answer: Electric current
Explanation :
The direction of the magnetic field produced by an electric current will change when the direction of the electric current changes.
For example :
If a current is flowing in a straight length of wire, the magnetic field is described by a concentric circle (using right-hand rule).
Let the field lines are in the clockwise direction and when the direction of current is reversed then the direction of the magnetic field is in anticlockwise direction.
Answer:
high frequent sound
Explanation:
because if its low than its slower.
!ND he falls down or whatta is this a riddle or a question we can't help you if you are not clear gosh people ...
Complete Question
The question image is in the first uploaded image
Answer:
Explanation:
From the question we are told that
Distance b/w Q mid point and P is given as x
Generally the equation for magnitude of the electric field at the point P is given as
where
Therefore
Therefore equation for magnitude of the electric field at the point P is