Question is ⇒ The input impedance for folded dipole antenna (two half dipole) is, Options are ⇒ (A) 73 n2, (B) 377 n2, (C) 73 n, (D) 377 n, (E) , Leave your comments or Download question paper.

Question is ⇒ The input impedance for folded dipole antenna (two half dipole) is, Options are ⇒ (A) 73 n2, (B) 377 n2, (C) 73 n, (D) 377 n, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	The input impedance for folded dipole antenna (two half dipole) is
A.	73 n² [Correct Answer]
B.	377 n² [Wrong Answer]
C.	73 n [Wrong Answer]
D.	377 n [Wrong Answer]
View Answer 1 -3 Explanation:- Answer : A 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 :

⇒ Magnetic effect of current is used in generators but not in motors.
TRUE
FALSE

⇒

Assertion (A): In FM the frequency of the carrier is varied by the modulating voltage

Reason (R): FM and PM are two forms of angle modulation.

Both A and R are correct and R is correct explanation of A
Both A and R are correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct

⇒ At 0 K the forbidden energy gap in intrinsic semi conductor is about
10 eV
6 eV
1 eV
0.2 eV

⇒ In a backward wave oscillator the wave
travelling along the line winds itself back and forth
progresses only in forward direction
progresses only in backward direction
either (a) or (c)

⇒ A computer program is used to read N and compute N !. IF N = 6, the result will be
6
12
720
1040

⇒ The first and the last critical frequencies (singularities) of a driving point impedance function of a passive network having two kind of elements, are a pole and a zero respectively. The above property will be satisfied by
RL network only
RC network only
LC network only
RC as well as RL network

⇒ The silicon sample with unit cross-sectional area shown below is in thermal equilibrium. The following information is given: T = 300 K, electronic charge = 1.6 x 10^-19C, thermal voltage = 26mV and electron mobility = 1350 cm²
1 kV/cm
5 kV/cm
10 kV/cm
26 kV/cm

⇒ The symbol shown in figure represen
P-channel MOSFET
UJT with N-type base
N-channel DEMOSFET with internal zener protection
P-channel DEMOSFET with internal zener protection

⇒ As per BIS there are 6 accuracy classes of instruments.
TRUE
FALSE

⇒ When subjected to alternating stresses, an insulating material is characterised by complex dielectric constant ∈^'_r - j∈^"_r . In such materials, the dielectric losses under alternating stress is proportional
∈^"_r
both ∈^'_r and ∈^"_r
∈^'_r
(∈^"_r)²

⇒ Computer virus is a piece of rough software of unknown origin that
copies itself like a breeding germ
spreads from one machine to another
eats away processing power
all of the above

⇒ In a conductor which of the following relations hold good?
∇ x D = r
∇ . D = r
∇ x D = 0
∇ . D = 0

⇒ The scale of thermocouple instrument is linear.
TRUE
FALSE

⇒ The probability giving distribution of electrons over a range of allowed energy levels is known as
Maxwell's Distribution
Fermi-Dirac Distribution
Richardson Dushman Distribution
none of the above

⇒ In 8085 microprocessor, in order to enable RST 5.5, RST 6.5 and RST 7.5 interrupts, which of the following instruction are needed?
EI only
SIM only
EI and SIM both
None

⇒ A TR (transmitter receiver) tube has
low loss for low power signals and high
high loss for low power signals and low loss for high level signal
low loss for both low level and high level signals
high loss for both low level and high level signals

⇒ Which one of the following is a transferred electron device?
BARITT diode
IMPATT diode
TRAPATT diode
Gunn diode

⇒

Assertion (A): Transformer coupling has the disadvantage of the weight of transformer and Saturation of core

Reason (R): Transformer coupling is very suitable for impedance matching

Both A and R are correct and R is correct explanation for A
Both A and R are correct but R is not correct explanation for A
A is correct R is wrong
A is wrong R is correct

⇒ A long periodic antenna is a
frequency independent antenna
frequency dependent antenna
directional antenna
none of the above

⇒ In a 4 bit D/A converter, the offset error is the output voltage when input digital voltage is
1111
0
either 1111 or 0000
none of the above

⇒ A certain network has two ideal voltages sources and a large number of ideal resistances. The power consumed in one of the resistances is 4 W when either of two sources is active and the other source is active and the other source is short circuited. When both sources is short circuited.When both sources are active, the power consumed in the same resistor would be
zero or 16 W
4 W or 8 W
zero or 8 W
8 W or 16 W

⇒ For an elliptically polarized wave incident on the interface of a dielectric at the Brewster angle the reflected wave will be
elliptically polarized
linearly polarized
right circularly polarized
left circularly polarized

⇒ Which of the following addressing modes is used in the instruction PUSH B?
Direct
Register
Register Indirect
Immediate

⇒ Which of these are two state devices?
Lamp
Punched card
Magnetic tape
All of the above

⇒ The energy of one quantum of light equal to hf.
TRUE
FALSE

⇒ The expression for satellite link frequencies such as 4/6 GHz denotes that
4 GHz is the up-link and 6 GHz is the down-link frequency
4 GHz is the down-link and 6 GHz is the up-link frequency
the system operates at a mean frequency of 5 GHz
one frequency is used as a back up for the other

⇒ Simplify : A + B + A B + (A + B)AB + C(B + AB)
B + A
C
C
1

⇒ A constant k high pass p section has a characteristic impedance of 300 Ω at f = ∞ . At f = f_c, the characteristic impedance will be
zero
∞
300 Ω
more than 300 Ω

⇒ A dc circuit breaker must use
natural commutation
forced commutation
both natural and forced commutation
either natural or forced commutation

⇒ A signal m(t) with bandwidth 500 Hz is first multiplied by a signal g(t) w
δ(t)
m(t)
0
m(t) δ(t)