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Assertion (A): Shunt of an ammeter has a low resistance. Reason (R): Shunt may be connected in series or in parallel with ammeter. | |
A. | Both A and R are true and R is correct explanation of A [Wrong Answer] |
B. | Both A and R are true but R is not correct explanation of A [Wrong Answer] |
C. | A is true R is false [Correct Answer] |
D. | A is false R is true [Wrong Answer] |
View Answer
Explanation:-
Answer : C Discuss it below : !! OOPS Login [Click here] is required to post your answer/result |
Also Read Similar Questions Below :
⇒ A short grounded vertical antenna has a length L which is 0.05λ at frequency f. If its radiation resistance at f is R ohms, then its radiation resistance at a frequency 2f will be
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Assertion (A): For a physically realisable driving point function, the degree of numerator and denominator should be equal.
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⇒ In a thyristor the gate lead is connected to the n layer near the p layer to which anode is connected.
TRUE
FALSE
⇒ The number of leads in an SCR are :
2
3
4
5
⇒ If i_{b} is plate current, e_{b} is plate voltage and e_{c} is grid voltage the v-i curve of a vacuum triode
0.5 and 1
- 2 and 1
30 and 1
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⇒ The input resistance R, of an ideal voltage amplifier is __________ and that of a current amplifier is __________ .
zero, zero
infinite, infinite
zero, infinite
infinite, zero
⇒ The frequency range of 300 kHz to 3000 kHz is known as
low frequency
medium frequency
high frequency
very high frequency
⇒ Which chopper circuit operates in quadrants 1 and 4?
A
B
D
E
⇒ Figure shows a Wheatstone bridge with RTD to one arm. If resistance of RTD = 1020 Ω, the voltage V_{0}
49 mV
51 mV
48 mV
45 mV
⇒ In op-amp integrating amplifier the input is feed to
inverting input
non-inverting input
both inverting and non-inverting input
either inverting or non-inverting input
⇒ In rectifiers the use of RC filters is recommended when
load current is high
load current is small
load current is neither high nor small
either (a) or (c)
⇒ An antenna operates effectively when its dimensions are
of the order of magnitude of wavelength to be transmitted
very small than the magnitude of wavelength to be transmitted
very large than the magnitude of wavelength to be transmitted
either (a) or (b)
⇒ A pole zero pattern of a certain filter is shown in figure. This filter mus
LPF
BFP
HPF
APF
⇒ If f(t) is an odd func
TRUE
FALSE
⇒ In a CE bipolar transistor operating in active region, collector current is independent of
V_{CE}
I_{B}
both V_{CE} and I_{B}
none of the above
⇒ When the height of a vertical earthed antenna is less than λ/4
the base input impedance will be capacitive
the base input impedance will be purely resistive
the base input impedance will be inductive
the base input impedance will be negligibly small
⇒ A computer memory is an ordered sequence of storage cells.
TRUE
FALSE
⇒ In a 4 bit full adder how many half adders and OR gates are required
8 and 4
7 and 4
7 and 3
8 and 3
⇒ The value of current at resonance in series R-L-C circuit is affected by the value of
C
L
R
all of the above
⇒ If the number of information bits is m, the number of parity bits p in the Hamming code is given by equation
2^{p} = m + p + 1
2^{p} ≥ m + p + 1
2^{P} = m + p
2^{p} ≥ m + p
⇒ A memory system of size 16 k bytes is to be designed using memory chips which have 12 address lines and 4 data lines each. The number of such chips required to design the memory system is
2
4
8
18
⇒ In the circuit of figure the current through C at t = &infin
0.166666666666667
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⇒ Two capacitors each of capacitance C and breakdown voltage V are joined in series. The capacitance and breakdown voltage of the combination is
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⇒
Match the following:
List I (BJT amplifier) | List II (Characteristics) | ||
---|---|---|---|
A. | CE | 1. | good voltage gain, good current gain |
B. | CC | 2. | voltage gain less than 1, high current gain |
C. | CB | 3. | current gain less than 1, voltage gain high |
A-1, B-2, C-3
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⇒ Which of the following microphones has highest output impedance?
Carbon
Ribbon
Crystal
Condenser
⇒ If a function has only cosine terms, it must satisfy the equation
f(t) = -f(t)
f(-t) = f(t)
f(-t) = -f(t)
none of the above
⇒ Parabolic and lens antenna used at
microwave frequency
medium frequency
low frequency
high frequency
⇒ One ampere means the flow of
One coulomb each minute
One electron per second
One coulomb per second
One coulomb each hour
⇒ A wire has a resistance R ohm. If another wire of the same material and same weight has double the diameter (as compared to the first wire), the resistance of the second wire will be
0.5 R
0.25 R
0.125 R
R/16