A.12 cm
B.15 cm.
C.13 cm.
D.14 cm.

A.34,6 cm/s
B.36,5 cm/s
C.34,2 cm/s
D.36,1 cm/s

A.\(0,87\)  
B.\(0,50\)  
C.\(0,70\)  
D.\(0,64\)

A.\( - 2,25\mu m\)
B.\( - 2,75\mu m\)  
C.\(2,25\mu m\)  
D.\(2,75\mu m\)

A.180V.
B.135V.
C.60V.
D.90V.

A.0,16 mH.
B.0,08 mH.
C.0,24 mH.
D.0,32 mH.

A.8 mm.
B.9 mm.
C.10 mm.
D.11 mm.

A.\(200W\)   
B.\(110W\)
C.\(220W\)  
D.\(100W\)

A.\(x = \frac{3}{{4\pi }}co{\rm{s}}\left( {\frac{{20\pi }}{3}t + \frac{\pi }{6}} \right)cm\)
B.\(x = \frac{3}{{8\pi }}co{\rm{s}}\left( {\frac{{20\pi }}{3} + \frac{\pi }{6}} \right)cm\)
C.\(x = \frac{3}{{4\pi }}co{\rm{s}}\left( {\frac{{20\pi }}{3}t - \frac{\pi }{6}} \right)cm\)  
D.\(x = \frac{3}{{8\pi }}co{\rm{s}}\left( {\frac{{20\pi }}{3} - \frac{\pi }{6}} \right)cm\)

A.\(\frac{{{I_M}}}{{{I_N}}} = {10^{{L_N} - {L_M}}}.\)   
B.\(\frac{{{I_M}}}{{{I_N}}} = {10^{\frac{{{L_N} - {L_M}}}{2}}}\)  
C.\(\frac{{{I_M}}}{{{I_N}}} = {10^{{L_M} - {L_N}}}.\)  
D.\(\frac{{{I_M}}}{{{I_N}}} = {10^{\frac{{{L_M} - {L_N}}}{2}}}\)