Question is ⇒ Insertion of a dielectric material between the plates of an air capacitor, Options are ⇒ (A) increases the capacitance, (B) decreases capacitance, (C) has no effect an capacitance, (D) increases breakdown voltage, (E) , Leave your comments or Download question paper.

Question is ⇒ Insertion of a dielectric material between the plates of an air capacitor, Options are ⇒ (A) increases the capacitance, (B) decreases capacitance, (C) has no effect an capacitance, (D) increases breakdown voltage, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	Insertion of a dielectric material between the plates of an air capacitor
A.	increases the capacitance [Correct Answer]
B.	decreases capacitance [Wrong Answer]
C.	has no effect an capacitance [Wrong Answer]
D.	increases breakdown voltage [Wrong Answer]
View Answer 1 -1 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 :

⇒ For the K map of the given figure the simplified Boolean expressio
AC + A B
A BC + A B C + A B C + AB C
AC + A B + AC
A C + A B + AB

⇒ The poles of an RC function
are simple and lie or negative real axis
are simple and lie on ω axis
must be complex conjugate
may be anywhere on s plane

⇒ The self inductances of two coils are 27 H and 3 H. If the winding or coils is such that 50% of flux of one links the other, the mutual inductance is
30 H
24 H
9 H
4.5 H

⇒ Assuming accumulator contain A 64 and the carry is set (1). What will register A and carry (CY) contain after ORA A?
A 6 H, 1
A 6 H, 0
00 H, 0
00 H, 1

⇒ In a single sideband suppressed carrier AM system, the modulation index is changed from 0 to 1, the power content of the signal
will be quarter
will be doubled
will increase by 50 percent
will increase by 25 percent

⇒ The properties of FETs resemble closely to
UJT
current transformer
thyristor
thermionic valves

⇒ An ammeter is
secondary instrument
absolute instrument
recording instrument
integrating instrument

⇒ Which one of the following is digital?
Pulse code modulation
Pulse width modulation
Pulse frequency modulation
Pulse position modulation

⇒ Maximum usable frequency is [f_muf]
f_c sec i
f_c cos i
f_c sin i
f_c sec i

⇒ With respect to the following 555 timer circuit what will be the value of R_A and R such that the LED turns on for a duration of 10 ms every time it receives negative trigger pulse. LED operating current = 20 mA, V_f = 1.4 V, Vo _on = 13.4 V and C = 0.22 nf
41.4 KΩ, 600 Ω
45 KΩ, 630 Ω
43.5 KΩ, 580 Ω
44.9 KΩ, 600 Ω

⇒ In a half wave voltage doubler circuit the input frequency is 50 Hz. The ripple frequency is
25 Hz
50 Hz
100 Hz
150 Hz

⇒
Assertion (A): In an automobile the amount of fuel admitted to the engine is adjusted as per the difference between desired and actual speed.
Reason (R): The control signal is the amount of fuel to be admitted to the engine.

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
R is correct but A is wrong

⇒
Match the following:
List I List II
A. CLP 1. Measure of μP clock speed
B. SHELL 2. Double sided double density
C. DSDD 3. Allows you to specify file as command processor
D. Megahertz 4. Microcode stored in ROM

A-4, B-3, C-2, D-1
A-3, B-4, C-2, D-1
A-1, B-2, C-3, D-4
A-2, B-3, C-4, D-1

⇒ The inverse Fourier transform of δ(t) is
∪(t)
1
δ(t)
e^j2pt

⇒ What will be maximum input that can be converted for a 6 bit dual slope A/D converter uses a reference of -6v and a 1 MHz clock. It uses a fixed count of 40 (101000).
9 V
9.45
10 V
8 V

⇒ The magnitudes of OC and SC input impedances of a transmission line an 100 Ω and 25 Ω. The characteristic impedance is
25 Ω
50 Ω
75 Ω
100 Ω

⇒ A string variable in Basic is
an alphabet followed by dollar sign
a digit followed by dollar sign
either (a) or (b)
neither (a) nor (b)

⇒ The attenuation in a waveguide near the cut off frequency is
zero
low
high
very high

⇒
Assertion (A): Light triggering is very suitable for HVDC transmission.
Reason (R): Light triggering has the advantage of complete electrical isolation of gate circuit.

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

⇒
Assertion (A): The equation D = ∈₀∈_rE is applicable only to isotropic materials.
Reason (R): In polycrystalline materials, the directional effects are absent.

Both A and R are true and R is correct explanation of A
Both A and R are true but R is not correct explanation of A
A is true but R is false
A is false but R is true

⇒ VLF waves are sometimes used because
they penetrate the ionosphere easily
they are very reliable
they require low power
they require transmitting antennas of convenient sizes

⇒ When signed numbers are used in binary arithmetic, which of the following has unique representation for zero?
Sign-magnitude
1's complement
2's complement
9's complement

⇒ Forbidden energy gap in germanium at 0 K is about
10 eV
5 eV
2 eV
0.78 eV

⇒ In an AM system, doubling of modulation index doubles the antenna current. The system is
single side band full carrier
vestigial side band
single side band suppressed carrier
double side band full carrier

⇒ Which of the following is not a valid real constant?
-73.1
10251,3
10.23
-5.7381

⇒ The total number of pins in 8085 are
20
30
40
50

⇒
Assertion (A): A video monitor does not need RF tuner and IF amplifier
Reason (R): The picture tube in TV is basically a CRT.

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

⇒ A full wave rectifier supplies a load of 1 kΩ. The a.c. Voltage applied to the diodes is 220 - 0 - 220 Volts rms. If diode resistance is neglected, then Average d.c. Voltage
220 V
200 V
198 V
0 volts

⇒ What is the purpose of DMA facility in microprocessor based system?
To increase the speed of data transfer between the mP and the I/O devices
To increase the speed of data transfer between the mP and the memory
To increase the speed of data transfer between the memory and the I/O devices
To improve the reliability of the system

⇒ In a rectangular waveguide Z_TE . Z_TM is
η₀²
1
1/ η₀²
η₀

	List I		List II
A.	CLP	1.	Measure of μP clock speed
B.	SHELL	2.	Double sided double density
C.	DSDD	3.	Allows you to specify file as command processor
D.	Megahertz	4.	Microcode stored in ROM

Users Also Read
Previous Papers

Aptitude

Reasoning

Gen.Knowledge

Speak English

English / Verbal

Online / Mock Test

Vedic Math