Computer Programming MCQs

5739 MCQs  (Page 176 of 574)

Attempt Computer Programming MCQs Quiz
Which of the following circuit elements will oppose the change in circuit current ?
A. Capacitance
B. Inductance
C. Resistance
D. All of the above
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Which of the following is unit of inductance ?
A. Ohm
B. Henry
C. Ampere turns
D. Webers/metre
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The core of a coil has a length of 200 mm. The inductance of coil is 6 mH. If the core length is doubled, all other quantities, remaining the same, the inductance will be_____________?
A. 3 mh
B. 12 mh
C. 24mh
D. 48mh
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Two coils have inductances of 8 mH and 18 mH and a co-efficient of coupling of 0.5. If the two coils are connected in series aiding, the total inductance will be______________?
A. 32 mh
B. 38 mh
C. 40 mh
D. 48 mh
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An e.m.f. of 16 volts is induced in a coil of inductance 4H. The rate of change of current must be______________?
A. 64 a/s
B. 32 a/s
C. 16 a/s
D. 4 a/s
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For a purely inductive circuit which of the following is true ?
A. Apparent power is zero
B. Relative power is.zero
C. Actual power of the circuit is zero
D. Any capacitance even if present in the circuit will not be charged
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In case of an inductance, current is proportional to___________?
A. Voltage across the inductance
B. Magnetic field
C. Both a. and b.
D. Neither (a) nor (b)
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The self inductances of two coils are 8 mH and 18 mH. If the co-efficients of coupling is 0.5, the mutual inductance of the coils is______________?
A. 4 mh
B. 5 mh
C. 6 mh
D. 12 mh
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A 200 turn coil has an inductance of 12 mH. If the number of turns is increased to 400 turns, all other quantities (area, length etc.) remaining the same, the inductance will be___________?
A. 6 mh
B. 14 mh
C. 24 mh
D. 48 mh
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In case all the flux from the current in coil 1 links with coil 2, the co-efficient of coupling will be____________?
A. 2.0
B. 1.0
C. 0.5
D. Zero
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Word of the Day
22 Jul
Combative
ready or eager to fight or argue.
لڑاکا، متنازع، جھگڑالو

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