B) A Maxwell bridge designed of a coil is shown in figure 5E 1. Derive an expression for R, a 2. If the fixed bridge component calculate the value of the unk: at balance.

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B) A Maxwell bridge designed to measure the unknown impedance (R, and L.)
of a coil is shown in figure 5B,
1. Derive an expression for Rx and L, under balance conditions?
2. If the fixed bridge component values are (R2= 1002 and C4 = 20 µF),
calculate the value of the unknown impedance if (R4 31832 and R3= 50 2)
at balance.
3. Calculate the Q factor for the coil if the supply frequency is 50 Hz?
Lx
R2
R
NI) RA
R,
AC supply
Figure 5B
wE
Transcribed Image Text:B) A Maxwell bridge designed to measure the unknown impedance (R, and L.) of a coil is shown in figure 5B, 1. Derive an expression for Rx and L, under balance conditions? 2. If the fixed bridge component values are (R2= 1002 and C4 = 20 µF), calculate the value of the unknown impedance if (R4 31832 and R3= 50 2) at balance. 3. Calculate the Q factor for the coil if the supply frequency is 50 Hz? Lx R2 R NI) RA R, AC supply Figure 5B wE
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