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TABLE:

TABLE 6.1

TRIAL V I θ P(mW) ZL R L XL L

1 4.1 4.3 77.8 3.73 949 201 748 0.0132 4.2 1.7 84.24 0.717 2471 248 2223 0.0393

3 4.2 1.1 81.00 0.723 3818 598 3220 0.0569

EXERCISE 1:

Power in WattsTrial 1:P = V*I *cos (θ)P = (4.1) (4.3) cos (77.8°)= 3.73 mTrial 2:P = V*I *cos (θ)P = (4.2) (1.7) cos (84.24°)

 = 0.717 mTrial 3:P = V*I *cos (θ)P = (4.2) (1.1) cos (81.00°) = 0.723 mThe resistance R LTrial 1:! " = V # I (cos (θ)! " = (4.1) # (4.3) (cos (77.8°)

 = 0.2007 = 201 $Trial 2:! " = (4.2) # (1.7) (cos (84.24°)= 0.248 = 248 $Trial 3:! " = (4.2) # (1.1) (cos (81.00°) = 0.598 = 598 $

The coil impeance ZLTrial 1:! " = %" (cos (θ)%" = ! " #cos (θ)%" = 201 # cos (77.8°)= 949Trial 2:! " = %" (cos (θ)%" = ! " #cos (θ)

%" = 248 # cos (84.24°)= 2471Trial 3:! " = %" (cos (θ)%" = ! " #cos (θ)%" = 598 # cos (81.00°)= 3818The reactance XLTrial 1:%" = &(! "2 ' "2)" = %"  ! "

" = 949 201 = 748Trial 2:%" = &(! "2 ' "2)" = %"  ! "" = 2471 248 = 2223Trial 3:%" = &(! "2 ' "2)" = %"  ! "" = 3818 598 = 3220

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The In!ctance o" the coil L " # $%&Z # $''' &Z

Trial 1:" = 2+,"" = " # 2+, " = 748 # 2+(9000) = 0.013Trial 2:" = 2+,"" = " # 2+, " = 2223 # 2+(9000) = 0.0393Trial 3:

" = 2+,"" = " # 2+, " = 3220 # 2+(9000) =0.0569

TABLE 6.2

TRIAL (%&Z) V I(mA) ZL XL1 20 3.7 1.92 40 4.0 1.863 60 4.1 1.80 80 4.1 1.74* 100 4.2 1.65+ 120 4.2 1.56, 140 4.2 1.43- 160 4.2 1.25

R L3=*$- .

EXERCISE 2:

Trial 6:%"  = V # I%"  = 4.2 # 1.56 = 2.69The reactance o" the coil XL

The Impeance ZLTrial 1:%"= V # I%"= 3.7 # 1.9 =1.95

Trial 2:%"= V # I%"= 4.0 # 1.86 = 2.15

Trial 3:%"= V # I%"= 4.1 # 1.8 = 2.28

Trial 4:%"= V # I%"= 4.1 # 1.74 = 2.36

Trial 5:%"= V # I%"= 4.2 # 1.65 = 2.55

Trial 6:%"= V # I%"= 4.2 # 1.56 = 2.69

Trial 7:%"= V # I%"= 4.2 # 1.43 = 2.94

Trial 8:%"= V # I%"= 4.2 # 1.25 = 3.36

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R L3 #*$-.

Trial 1:" = 2+",

"= 2 (+) (