Objective Type Question or MCQ of Electrical Circuits and Magnetic Fields page-3
31. The average value of the alternating current is more than the r.m.s. value
a) True
b) False
Ans: (b)
a) 1.11
b) 1.57
c) 1.414
d) 0.637
e) 0.707
Ans: (c)
a) 3/4 P
b) 2/3 P
c) 4/3 P
d) 3/2 P
Ans: (c)
a) Very high
b) Practically zero
c) A few thousand ohm
d) Close to 10,000 ohms
Ans: (b)
a) 5 watts
b) 10 watts
c) 20 watts
d) 100 watts
Ans: (c)
a) Increases in each branch
b) Is zero in all branches
c) Is zero in the highest resistive branch
d) Increases in the branch of the lowest resistance
Ans: (b)
a) Parallel with each other
b) Parallel with the voltage source
c) Series with the voltage source
d) Series with each other
Ans: (d)
a) The same current as in the voltage source
b) The same current
c) The same IR drop
d) An IR drop equal to the applied voltage
Ans: (c)
a) 5 volts across a 5 ohm resistance
b) 5 volts across two 5 ohm resistance in series
c) 5 volts across two 5 ohm resistance in parallel
d) 500 volts across a 1 M Ω resistance
Ans: (c)
a) Rest of the two bulbs will not light
b) All three bulbs will light
c) The other two bulbs will light
d) There will be heavy current in the main line
Ans: (c)
a) 0.1 ohm
b) 0.02 ohm
c) 0.2 ohm
d) 0.05 ohm
Ans: (c)
a) Negative
b) Zero
c) Positive
d) About 5 ohms per degree
Ans: (c)
a) R.M.S. value of current is greater than the average value
b) R.M.S. value of current is less than the average value
c) R.M.S. value of the current is to average value
d) There is no meaning of r.m.s value and average value for square wave
Ans: (c)
a) True
b) False
Ans: (a)
a) True
b) False
Ans: (a)
Recent Post
 Multiple Choice Question (MCQ) of Electronics page-17:241. Which of the following statement is true?
a) The saturation voltage VCF of silicon transistor is more than germanium transistor.
b) The saturation voltage VCE for germanium transistor is more than silicon transistor.
c) The saturation voltage VCE for silicon transistor is same as that for germanium.
d) The saturation voltage VCE for silicon transistor is lower than germanium transistor. Read more... |
Multiple Choice Question (MCQ) of Electronics page-16:226. Which of the following statement is correct?
a) Inner electrons are always present in the semiconductor.
b) Bound electrons are always present in the semiconductor.
c) Free electrons are always present in the semiconductor.
d) Inner and bound electrons are always present in the semiconductor. Read more... |
Multiple Choice Question (MCQ) of Electronics page-15:211. The materials whose electrical conductivity is usually less than 1 × 106 mho/m are
a) Semiconductors
b) Conductors
c) Insulators
d) Alloys Read more... |
Multiple Choice Question (MCQ) of Electronics page-14:196. In which of the following device the base resistors are not added in the package but added externally?
a) UJT
b) CUJT
c) PUT
d) None of the above Read more... |
Multiple Choice Question (MCQ) of Electronics page-13:181. The conduction in JEFT is always by the
a) Majority carriers
b) Minority carriers
c) Holes
d) Electrons
e) Holes and electrons simultaneously Read more... |
