An ideal transformer with N 1 = 1000 and N 2 = 250 is connected with an impedance Z 22 across winding 2. If V 1 = 1000 ∠ 0 ° V and I 1 = 5 ∠ − 30 ° A, determine V 2 , I 2 , Z 2 , and the impedance Z 2 ' , which is the value of Z 2 referred to the primary side of the transformer.
An ideal transformer with N 1 = 1000 and N 2 = 250 is connected with an impedance Z 22 across winding 2. If V 1 = 1000 ∠ 0 ° V and I 1 = 5 ∠ − 30 ° A, determine V 2 , I 2 , Z 2 , and the impedance Z 2 ' , which is the value of Z 2 referred to the primary side of the transformer.
Solution Summary: The author calculates the value of lV_2 for a conventional two-winding single-phase transformer.
An ideal transformer with
N
1
=
1000
and
N
2
=
250
is connected with an impedance
Z
22
across winding 2. If
V
1
=
1000
∠
0
°
V
and
I
1
=
5
∠
−
30
°
A, determine
V
2
,
I
2
,
Z
2
,
and the impedance
Z
2
'
, which is the value of
Z
2
referred to the primary side of the transformer.
istics of diodes, bipolar junction transistors, and
plain the structure, operation,
1. The purpose of doping in semiconductor diodes is:
a) To control their electrical properties
b) To increase their physical size
c) To enhance their mechanical strength d) To improve their thermal stability
2. In electronics production, your team wants to manufacture a very cheap diode rectifier.
Which of the following rectifier configurations would you select?
a) Half-wave rectifier
c) Full-wave rectifier
b) Bridge rectifier
d) Controlled rectifier
3. The region that a Zener diode operates to provide voltage regulation is:
a) Saturation
c) Reverse bias
b) Breakdown
d) Forward bias
4. In NMOS transistors, the depth of the channel is primarily changed by:
a) VDS
b) lp
c) VGS
d) None of these
5. NMOS transistors have
than PMOS, resulting in better current conduction:
b) Long channel
a) High mobility
c) Low mobility
d) Short channel
6. You are working in electronic production, and your team is asked to…
8.46 The generator circuit shown in Fig. P8.46 (on page 494) isconnected to a distant load via a long coaxial transmission line.The overall circuit can be modeled as in Fig. P8.46(b), in whichthe transmission line is represented by an equivalent impedanceZline = (5+ j2) W.(a) Determine the power factor of voltage source Vs.(b) Specify the capacitance of a shunt capacitor C that wouldraise the power factor of the source to unity when connectedbetween terminals (a,b). The source frequency is 1.5 kHz.
7. MOSFET circuit
The MOSFET in the circuit below has V₁ = 1 V and kn = 4 mA/V².
a) Is the MOSFET operating in saturation or in the triode region?
b) Determine the drain current ID and Vout.
+ 5 V
5 k
Vout
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