6. 7. The magnetic field of a plane electromagnetic wave is given by: B=210 sin(0.5 10+ 1.5 10t) T. The amplitude of the electric field would be: (a) 6 Vm along x-axis (c) 6 Vm along z-axis (b) 3 Vm along z-axis (d) 2 108 Vm along z-axis In a series LR circuit X = R and power factor of the circuit is P1. When capacitor with 8. capacitance C such that X = Xc is put in series, the power factor becomes P. The ratio P P is: (a) 2 (b) 1 3 (c) (d) 2:1 A charge particle is moving in uniform magnetic field (21+31) T. If it has an acceleration of (ai-4)m/s, then the value of a will be: