PROBLEM 11.6
KNOWN: A Wheatstone bridge with all resistances initially equal to 100 . The
maximum power through R1 is 0.25 W.
FIND:
Maximum applied voltage
Bridge sensitivity
ASSUMPTIONS: Infinite meter resistance
SOLUTION: From the circuit shown below
i1

PROBLEM 8.4
KNOWN: A Wheatstone bridge and RTD as shown in Figure 8.35, with
FIND:
= 0.003925 C-1
Ro = 25 at 0 C
R1 = 41.485 for balanced conditions
a) The temperature of the RTD
b) Compare the static sensitivity of this circuit
to the circuit in Example

PROBLEM 6.4
KNOWN:
R3 = R4 = 200
R2 = variable resistor
FIND:
R1
40 x 100
a) R2 to balance the bridge with x = 0
b) Find a general expression for x
f ( R2 )
ASSUMPTIONS: Zero Galvanometer error
SOLUTION: At balanced conditions
Thus R2
1 100
and in general

PROBLEM 4.11
KNOWN:
FIND:
Data of Table 4.8, Column 1
N = 20
F
SOLUTION
tSF (95%)
For this dataset in Column 1:
F
1
N
SF
[
N
i 1
1
Fi
50.5 N
N
N 1i
1
( Fi
F ) 2 ]1/ 2
1.00 N
with
N 1 19 . Then from Table 4.4, t19,95 = 2.093. The scatter of the measured da