Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-13
181. Which of the following function represents parabolic characteristics?
a) ƒ(t) = t
b) ƒ(t) = t2
c) ƒ(t) = e-at
d) ƒ(t) = Ut
Ans: (b)
a) unity
b) zero
c) infinity
d) 0.5
Ans: (a)
a) R decreases
b) R increases
c) Voltage increases
d) Impedance increases
Ans: (a)
a) Be reduced to half
b) To reduced to one-fourth
c) Remain same
d) Be doubled
Ans: (b)
a) 1
b) 2
c) 3
d) 5
e) 4
Ans: (d)
a) Open circuit
b) Closed circuit
c) Short circuit
d) None of the above
Ans: (c)
a) 10 V, 80 Ω
b) 10 V, 120 Ω
c) 4 V, 48 Ω
d) 5 V, 50 Ω
Ans: (c)
a) 0
b) V
c) V/2
d) 0.37 V
e) 0.63 V
Ans: (b)
a) 0
b) V
c) 0.37 V
d) 0.63 V
c) V/√3
Ans: (a)
a) 0
b) V
c) 0.37 V
d) 0.63 V
Ans: (a)
a) V
b) 0
c) V/√3
d) 0.63 V
Ans: (a)
a) Low pass filter
b) High pass filter
c) Medium pass filter
d) None of the above
Ans: (a)
a) Differentiator
b) Integrator
c) Multiplier
d) Divider
Ans: (b)
a) Low pass filter
b) High pass filter
c) Medium pass filter
d) None of the above
Ans: (b)
a) Low pass filter with low time constant
b) Low pass filter with high time constant
c) An integrator
d) A differentiator
e) (b) or (c)
Ans: (e)
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