Question is ⇒ Two impedances 10 - j 10 and 10 + j 10 are connected in parallel. Their combined impedance is, Options are ⇒ (A) 5 + j5, (B) 5 - j5, (C) 10 + j0, (D) 20 - j10, (E) , Leave your comments or Download question paper.

Question is ⇒ Two impedances 10 - j 10 and 10 + j 10 are connected in parallel. Their combined impedance is, Options are ⇒ (A) 5 + j5, (B) 5 - j5, (C) 10 + j0, (D) 20 - j10, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Two impedances 10 - j 10 and 10 + j 10 are connected in parallel. Their combined impedance is
A.	5 + j5 [Wrong Answer]
B.	5 - j5 [Wrong Answer]
C.	10 + j0 [Correct Answer]
D.	20 - j10 [Wrong Answer]
View Answer 2 -4 Explanation:- Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result Help other students, write article, leave your comments

Previous question Next question

Also Read Similar Questions Below :

⇒ In a series R-L-C circuit at the resonant frequency the
current is maximum
current is minimum
impedance is maximum
voltage is maximum

⇒ Which of the following statements is non-executable in FORTRAN 77?
DO
ASSIGN
END
DIMENSION

⇒ The normal operation of JFET is
constant voltage region
constant current region
both constant voltage and constant current regions
either constant voltage or constant current region

⇒ For an RC admittance function Y, the slope dY/dσ
is positive
is negative
may be positive or negative
0

⇒ The ratio of impurity atoms to intrinsic semiconductor atoms in an extrinsic semiconductor is about.
0.0486111111111111
0.736111111111111
1 : 100000
1 : 10⁸

⇒ A negative-feedback closed-loop system is supplied to an input 5 V. The system has a forward gain of 1 and a feedback gain of 1 and a feedback gain of 1. What is the output voltage?
1.0 V
1.5 V
2.0 V
2.5 V

⇒ The phase difference (jω - p₁) means
phasor drawn from p₁ to jω
phasor drawn from origin to p₁
phasor directed from origin to jω point
phasor directed from jω to p₁

⇒ A class C amplifier has input frequency of 200 kHz. If width of collector pulses is 0.1 μs, duty cycle is
0.01
0.02
0.1
0.2

⇒ The depletion layer across a P⁺ n junction lies
mostly in the P⁺ region
mostly in n region
equally in both the P⁺ and n-region
entirely in the P⁺ region

⇒ A vertical wire of 1 meter length carries a current of 1 A at 10 MHz. The total radiated power is nearly
0.13 W
0.88W
7.3 W
73 W

⇒ The feedback control system shown in figure is sta
for all K ≥ 0
only if K ≥ 1
only if 0 ≤ K < 1
only if -1 ≤ K < 1

⇒ As the atoms of rare gases become larger, electronic polarizability
increases
decreases
remains the same
may increase or decrease

⇒ For the time domain response shown in figure the
lies on negative real axis
lies on positive real axis
lies on imaginary axis
is complex or imaginary

⇒ Which has volatile memory?
Magnetic tape
RAM
Diskette
Hard disk

⇒ An antenna couple is used due to all of the following reasons except
to prevent reradiation of the local oscillator
to discriminate against harmonics
to make the antenna look resistive
to provide the output amplifier with the correct load impedance

⇒ The maximum permissible distance between two samples of a 10 kHz signal
100 μ sec
50 μ sec
10 μ sec
none

⇒ A UPS contains
rectifier
inverter
either rectifier or inverter
both rectifier and inverter

⇒ What is the address space of 8086 CPU?
One Megabyte
256 Kilobytes
1 K Megabytes
64 Kilobytes

⇒ The Thevenin Resistance of the circui
94/7 kΩ
54/7 kΩ
7/54 kΩ
0

⇒ A conductor in x-y plane and having length 1 m is moving with a velocity V = (2i + 3j + k) m/sec. A magnetic induction field B = (i + 2j) Wb/m² is applied to the conductor. The potential difference between the ends of the conductor is
0
4.88 V
6 V
None of these

⇒ Which of the following wave remains unaffected during day and night?
Tropospheric wave
Sky wave
Ground wave
None of the above

⇒ A cordless telephone using separate frequencies for transmission in base and portable units is known as
duplex arrangement
half duplex arrangement
either (a) or (b)
neither (a) nor (b)

⇒ The figure of merit for a logic family is
gain band width product
(propagation delay time) (power dissipation)
(fan out) (power dissipation)
(noise margin) (power dissipation)

⇒ The core of a solenoid is made of material of relative permeability μ_r. A small cavity area dA and length dl is cut in the core. If it is desired that flux density in the cavity should be equal to B₀
the fields inside and outside the cavity must be equal
the field inside the cavity must be made stronger than field outside the cavity
the field inside the cavity must be made weaker than the field outside the cavity
none of the above

⇒ Norton's theorem reduces a two terminal network to
a constant current source and an impedance is parallel
a constant current source and an impedance in series
a constant voltage source and an impedance in parallel
a constant voltage source and an impedance in series

⇒ Which of the following couplings may cause unwanted clamping?
Resistive
Inductive
Capacitive
Both (a) or (b)

⇒ The value of VSWR is taken as ∞ when the line is
short-circuited
open-circuited
terminated with full load
terminated with load equal to the characteristic impedance of the load

⇒ The emitter coupled pair of BJT's gives a linear transfer relation between the differential output voltage and the differential input voltage V_id only when the magnitude of V_id is less a times the thermal voltage, where a is
4
3
2
1

⇒ In the op-amp circuit of figure, V_{010 V
-10 V
5 V
-5 V}

⇒ MF is generally used for
telegraphy
radio and television links
satellite communication
broadcasting, navigation