Question is ⇒ A coil has resistance R and inductance L. At ω = ∞ the phase angle between voltage and current is, Options are ⇒ (A) 0°, (B) 180°, (C) 45°, (D) 90°, (E) , Leave your comments or Download question paper.

Question is ⇒ A coil has resistance R and inductance L. At ω = ∞ the phase angle between voltage and current is, Options are ⇒ (A) 0°, (B) 180°, (C) 45°, (D) 90°, (E) , Leave your comments or Download question paper. Previous question Next question


Q1.	A coil has resistance R and inductance L. At ω = ∞ the phase angle between voltage and current is
A.	0° [Wrong Answer]
B.	180° [Wrong Answer]
C.	45° [Wrong Answer]
D.	90° [Correct Answer]
View Answer 1 -1 Explanation:- Answer : D 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 high frequency response of a transistor amplifier, suitable model to use is
Kelvin network
Lattice network
Hybrid p
T-network

⇒ For a current transformer, the standard secondary rating is
1 A or 5 A
2.5 A
0.416666666666667
5 A or 10 A

⇒ In the circuit of figure, the switch is closed at t = 0. At t = 0⁺ the current supplied by batter
0
0.208333333333333
less than 5A
infinity

⇒ In the synthesis of RLC network
the number of elements in Bott-Duffin synthesis and Brune's synthesis are always equal
the number of elements in Bott-Duffin synthesis is more than that in Brune's synthesis
the number of elements in Bott-Duffin synthesis is less than that in Brune's synthesis
the number of elements in Bott-Duffin synthesis may be more or less than that in Brune's synthesis

⇒ An SR flip flop can be built using
NOR gate only
NAND gate only
either NOR or NAND gates
neither NOR nor NAND gates

⇒ A digital voltmeter has a 4 1/2 digit display. The 1 V range can measure voltage up to
0.9999 V
1.9999 V
0.199 V
9.999 V

⇒ When an electron rises through a potential of 100 V it will acquired an energy of
100 eV
100 Joules
100 ergs
100 x 10^-6 Newtons

⇒ Which of the following characteristic are necessary for a sequential circuit?

It must have 6 gates
It must have feedback
Its output should depend on past value

Which of the above statements are correct?
1, 2, 3
1, 2
2, 3
1, 3

⇒ A linear displacement digital transducer generally uses
straight binary code
BCD
gray code
hexadecimal code

⇒ Two infinitely long wires carrying current are as shown in the figure below. One wire is in the y-z plane and parallel to the y-axis. The other wise is in the x-y plane and parallel to the x-axis. Which components of the resulting magnetic field are non-zero at the ori
x, y, z components
x, y components
y, z components
x, z components

⇒ Public address systems generally use electret microphones.
TRUE
FALSE

⇒ The following components are used to measure power output of a 2 kW TWT amplifier

TWT
Low pass/High pass filter
Low power 20 dB attenuator
40 dB directional coupler with matched load
Power meter.

The correct sequence of connections of these components is:
1, 4, 2, 3, 5
1, 3, 4, 2, 5
1, 2, 4, 3, 5
1, 4, 3, 2, 5

⇒ The radiation resistance of a λ/16 wire dipole in free space will be nearly
1 Ω
3 Ω
13 Ω
30 Ω

⇒ The skip distance does not depends upon
the power transmitted
type of wave propagation
angle of beaming of the wave
frequency of the signal transmitted

⇒ The value of susceptibility in case of vacuum is taken as
zero
0.5
unity
infinity

⇒ The primary colours are
blue and green
blue and red
red and green
blue, red and green

⇒ A buffer is a device that isolates other devices. Typically a buffer has
a high input impedance and a low output impedance
a high input impedance as well as output impedance
a low input impedance and a high output impedance
a low input impedance as well as output impedance

⇒ Thermistor is used in
temperature measurement
temperature control
high temperature alarm circuits of devices
all of the above

⇒ Consider the following statements:

Acceptor level is formed very close to the conduction band.
The effective mass of the free electron is same as that of a hole.
The magnitude of the charge of a free electron is same as that of a hole.
Addition of donor impurities adds holes to the semiconductor.

Which of the above statements are correct?
1 and 3
2 and 3
2 and 4
3 and 4

⇒ Most of the digital computers do not have floating-point hardware because
floating point hardware is costly
it is slower than software
it is not possible to perform floating point addition by hardware
of not specific reason

⇒ The electrolyte in nickel cadmium cell is dilute potassium hydroxide.
TRUE
FALSE

⇒ A network has only independent current sources and resistance. If values of all resistors are doubled, the values of node voltages
will become half
will remain unchanged
will become double
cannot be determined unless circuit configuration and values of resistors are known

⇒ How much is contributed by each bit in the code word of a PCM system under uniform and symmetric quantization to the signal to noise ratio?
3 dB
4 dB
5 dB
6 dB

⇒ Which of the following is a computer language?
MS WORD
Page maker
MS EXCEL
LISP

⇒ The traffic-handling capacity of an Earth station on the uplink depends on
its EIRP
satellite antenna gain
noise associated with the satellite
all of the above

⇒

Assertion (A): A hot wire ammeter has a cramped scale.

Reason (R): The heat is proportional to square of current.

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 R is false
A is false R is true

⇒ Consider the following statements for a driving point function F(jω):

Re F(jω) is an even function of ω and is 0 or positive for all values of ω.
Im F(jω) is an even function of ω and is 0 or positive for all values of ω.
Re F(jω) is an odd function of ω and is 0 or negative for all values of ω.
Re F(s) = 0 for Re s = 0.

Which one of the statements given above is/are correct?
1 only
1 and 4
2, 2 and 4
4 only

⇒ A thermistor is used for
over voltage protection
temperature alarm circuit
automatic light control
none of the above

⇒ The linear transistor circuits always operate in the
saturation
cut off
active
inactive

⇒ In a line VSWR of a load is 6 dB. The reflection coefficient will be
0.033
0.33
0.66
3.3