Needed some assistance with these questions, can anyone can explain them to me? This is the equation sheet I used

Transformers: V1 Magnetic Force = N2 V 2 F = q (vxB) = qvBsine Power = VI F = IL x B = ILBsin0 Propagation and Properties of Electromagnetic Waves Motion of a charged particle in a magnetic field: S = - ExB Ho F. = mv2 The magnetic force provides the centripetal force. Save = 2Ho 1 E Bo = ave Magnetic Field of a Long, Straight Wire: Smax = LEBo = max B - Hol 2 7 E I = Power = C B Area Magnetic Force between two parallel F ul, I2 conductors: L 2nd Radiation Pressure and Momentum P = (1+f) Save C Torque on a Current Loop: T = BIA sin 0 Reflection and Refraction n = Velocity Selector: V = Snell's Law : n, sin 0, = n, sin @2Magnetic flux: = BA cos O Mirrors and Thin Lenses hi di M = Faraday's Law of Induction ho do 1 AD B + & = -N d At Some Constants e- = -1.6 x 10-19 C me = 9.11 x 10-31 kg Motional emf: & = BLv proton charge = +1.6 x 10-19 C mp = 1.67 x10-27 kg Eo = 8.85 x 10-12C2/N.m2 Generators: & = NAB w sin wt Ho = 4nt x 10-7 T.m/Ay F X What is the direction of the velocity of a negative charge that experiences a magnetic force directed in the negative x direction with the magnetic field in the positive z direction shown in the figure?What is the maximum torque on a 200-turn rectangular loop of wire with dimensions wire 20.0 cm x 10 cm that carries a 20.0-A current in a 1.5-T field?What emf is prodcuced in the sliding rod as shown in the figure if it is moved with a speed of 3.0 m/s in a unifrom field of 2.0 T, given the rod's length is 40.0 cm? d increasing RHR-2 B. X X X Application of Lenz's X