The instantaneous voltage across a circuit element is v ( t ) = 400 sin ( ω t + 30 ° ) volts , and the instantaneous current entering the positive terminal of the circuit element is i ( t ) = 100 cos ( ω t + 10 ° ) A . For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using cos ( ω t ) as the reference.
The instantaneous voltage across a circuit element is v ( t ) = 400 sin ( ω t + 30 ° ) volts , and the instantaneous current entering the positive terminal of the circuit element is i ( t ) = 100 cos ( ω t + 10 ° ) A . For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using cos ( ω t ) as the reference.
Solution Summary: The author calculates the maximum value of instantaneous voltage and instantanous current.
The instantaneous voltage across a circuit element is
v
(
t
)
=
400
sin
(
ω
t
+
30
°
)
volts
, and the instantaneous current entering the positive terminal of the circuit element is
i
(
t
)
=
100
cos
(
ω
t
+
10
°
)
A
. For both the current and voltage, determine (a) the maximum value, (b) the rms value, and (C) the phasor expression, using
cos
(
ω
t
)
as the reference.
Find the impedance theoretically of a wire if it carries the frequency 10 kHz have a voltage is 8v, the
current is 2mA, resistance is 13 k, inductance 29 mH and capacitance 0.1 uf
A
B
0
MUX
S
B
S
This figure, Fig B.3.2, shows the circuit diagram for a two-input
multiplexor having inputs A and B, and a control signal S.
The equation given in P&H for this circuit is: C = (A*S)+(B*S)
This equation is not correct.
Please provide the correct equation for this circuit.
4. In a series circuit with 10V applied:
A. The greater the total resistance, the less the total current
B. The greater the total current, the greater the total resistance
C. The IR voltage drops will each equal 10V
D. The sum of the IR voltage drops will equal 10V
5. When an IR voltage drop exists in a series circuit :
A. The polarity of the resistor is equal to positive
B. The polarity of the resistor is equal to negative
C. The polarity of the resistor is less than the total current on both sides
D. The polarity of the resistor is positive on one end and negative on the
other because of current flowing through it
Chapter 2 Solutions
MindTap Engineering for Glover/Overbye/Sarma's Power System Analysis and Design, 6th Edition, [Instant Access], 1 term (6 months)
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