B) determine the direction of the magnetic field at point p, located at the center of the square of edge length ℓ = 0.200 m. to the left to the right upward downward into the page out of the page correct: your answer is correct. (c) what if? what would be the magnitude and direction of the initial acceleration of an electron moving with velocity 3.63 ✕ 105 m/s into the page at point p?

(2) (a) you have a simple circuit that consists of only a battery (δvbat=1.5v) and two resistors with resistance r1=10ω and r2=5ω, connected in series with each other. what is the current running through the battery? (b) you re-arrange your circuit so now r2 is attached in parallel to r1 rather than in series. what is the current running through the battery? (c) you add an additional resistor r3=7ω on the same branch as r2. what is the current running through the battery? (d) what is the power dissipated in r3?