Answer Happy

8. In the online lab, a voltineter was connected in a parallel with the clinical component across which potential difference is to be measured. In terms of resistance, a voltmeter should have resistance, A. Zero B. Very high C. Very low D. None of the above 2. A uniform horizontal magnetic field points toward the RIGHT of this page. Which of the following particles experiences the greatest magnitude of magnetic force due to this magnetic field? All particles are moving in the plane of this paper toward the top of the page. A. a neutron moving with a speed of 4.5 x 10 m/s B. an electron moving with a speed of 3.5 x 10 m/s C. a proton moving with a speed of 6.2 x 10 m/s D. an alpha particle moving with a speed of 2.7 x 10m's E. They all experience the same magnetic force magnitude. 10. In basic AC circuits we have examined this semester, the sinusoidal voltage in the circuit is described by VO) - Vmax sin (Ct). The signal amplitude is given by A. VO B. V C.cat D. sin(t) E both Band D 11. The figure to the right shows a DC resistive circuit with a power supply AVs. What can you say about the current in the circuit over time? A. clockwise and decreasing R, B counter-clockwise and constant C. counter-clockwise and increasing D. clockwise and increasing E. clockwise and constant F. counter-clockwise and decreasing R, R AVE G 12. At point G in the RC circuit above is just below the power supply. The current magnitude in the circuit is I. If we start at point and apply Kirchhoff's voltage law, which is the correct form we should use? A R. red [B ΔV, SR₃ -C AVC G black R₂ A. +AV,+IR +AV.=0 C. + IR, -AVs IR,+AV = 0 E. AVS-IR - AV. -IR =0 B. +AV.-IR.-IR3 +AV. = 0 D.-AV, - IR - AV. -1,R2 = 0 F. AVs-IR - AV. -IR=IR3