Basic electrical MCQ #11
1) Kirchhoff’s Current law at a junction deal with
(a) Conservation of momentum
(b) Conservation of the Charge
(c) Conservation of angular momentum
(d) Conservation of energy
2) Kirchhoff’s voltage law deals with
(a) Conservation of angular momentum
(b) Conservation of the Charge
(c) Conservation of energy
(d) Conservation of momentum
3) One coulomb of charge is equal to
(a) 625 × 10^16 electrons
(b) 6.25 × 10^16 electrons
(c) 0.625 × 10^16 electrons
(d) 62.5 × 10^16 electrons
4) Dielectric material must be
(a) semiconductor
(b) Insulator
(c) Resistor
(d) Good conductor
ANSWER: | 1-b | 2-c | 3-a | 4-b |
5) Ratio of electric flux density to electric field intensity is called_______ of medium.
(a) Permittivity
(b) Permeability
(c) Reluctance
(d) Capacitance
6) 1 volt/meter is same as
(a) 1 coulomb / Joule
(b) 1 meter / coulomb
(c) 1 Newton / coulomb
(d) 1 joule / coulomb
7) Magnetic force (H) and magnetic flux (B) are connected by relation
(a) B=µH
(b) B=µrH/µo
(c) B=H/µoµr
(d) B=µoH/µr
8) When the rate of change of current is unity,
induced EMF is equal to
(a) The thickness of the coil
(b) Number of turns in the coil
(c) Magnetic flux linked with the coil
(d) coefficient of self-induction
ANSWER: | 5-a | 6-c | 7-b | 8-d |
9) The direction of the induced EMF can be found by
(a) Laplace’s law
(b) Fleming’s right-hand law
(c) Lenz’s law
(d) Fleming’s left-hand law
10) Ampere hour is unit of __________
(a) electric current
(b) electric energy
(c) electric charge
(d) electric power
11) Another name of relative permittivity is
(a) Dielectric strength
(b) Dielectric constant
(c) Potential gradient
(d) None of above
12) Total conductance of figure
(a) 13 mho
(b) 1.6 mho
(c) 6 mho
(d) 2.5 mho
ANSWER: | 9-c | 10-c | 11-b | 12-b |
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