81. A single core cable used on 33000 V has conductor diameter 10 mm and the in¬ternal diameter of sheath 25 mm. The maximum electrostatic stress in the cable is
(a) 62 x 105 V/m
(b) 72 x 105 V/m
(c) 82 x 105 V/m
(d) 92 x 105 V/m
Ans: b
82. Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is
(a) 0.56 x 1015 m/s2
(b) 1.5 x 1015 m/s2
(c) 1.6 x 1015 m/s2
(d) 1.76 x 1015 m/s2
Ans: d
83. The total deficiency or excess of electrons in a body is known as
(a) current
(b) voltage
(c) potential gradient
(d) charge
Ans: d
84. The relative permittivity has the following units
(a) F/m
(b) m/F
(c) Wb/m
(d) no units
Ans: c
85. The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as
(a) pholoelectric effect
(b) chemical effect
(c) magnetic effect
(d) induction
Ans: d
86. A unit tube of flux is known as tube
(a) Newton
(b) Faraday
(c) Michale
(d) None of the above
Ans: b
87. The number of Faraday tubes of flux passing through a surface in an electric field is called
(a) electric flux
(6) electric flux density
(c) magnetic flux density
(d) electric charge density
Ans: a
88. The unit of electric instensity is
(a) N/C2
(b) Wb/m2
(c) N/C
(d) N2/C
Ans:
89. The value of E within the field due to a point charge can be found with the help of
(a) Faraday's laws
(b) Kirchhoff s laws
(c) Coulomb's laws
(d) none of the above
Ans: c
90. at a point may be defined as equal to the lines of force passing normally through a unit cross section at that point.
(a) Electric intensity
(6) Magnetic flux density
(c) Electric flux
(d) None of the above
Ans: a
Read More Questions:
Electrostatics MCQs Part1
(a) 62 x 105 V/m
(b) 72 x 105 V/m
(c) 82 x 105 V/m
(d) 92 x 105 V/m
Ans: b
82. Two infinite parallel plates 10 mm apart have maintained between them a potential difference of 100 V. The acceleration of an electron placed between them is
(a) 0.56 x 1015 m/s2
(b) 1.5 x 1015 m/s2
(c) 1.6 x 1015 m/s2
(d) 1.76 x 1015 m/s2
Ans: d
83. The total deficiency or excess of electrons in a body is known as
(a) current
(b) voltage
(c) potential gradient
(d) charge
Ans: d
84. The relative permittivity has the following units
(a) F/m
(b) m/F
(c) Wb/m
(d) no units
Ans: c
85. The phenomenon of an uncharged body getting charged merely by the nearness of a charged body is known as
(a) pholoelectric effect
(b) chemical effect
(c) magnetic effect
(d) induction
Ans: d
86. A unit tube of flux is known as tube
(a) Newton
(b) Faraday
(c) Michale
(d) None of the above
Ans: b
87. The number of Faraday tubes of flux passing through a surface in an electric field is called
(a) electric flux
(6) electric flux density
(c) magnetic flux density
(d) electric charge density
Ans: a
88. The unit of electric instensity is
(a) N/C2
(b) Wb/m2
(c) N/C
(d) N2/C
Ans:
89. The value of E within the field due to a point charge can be found with the help of
(a) Faraday's laws
(b) Kirchhoff s laws
(c) Coulomb's laws
(d) none of the above
Ans: c
90. at a point may be defined as equal to the lines of force passing normally through a unit cross section at that point.
(a) Electric intensity
(6) Magnetic flux density
(c) Electric flux
(d) None of the above
Ans: a
Read More Questions:
Electrostatics MCQs Part1
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