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Free download in PDF Electric Charges and Fields Objective Type Questions & Answers for competitive exams. These Electric Charges and Fields Quiz Questions with Answers are important for competitive exams like NEET, AIIMS, IIT, JEE and other Board Exams.
(21)
Which, among the following is the correct expression for an electric field?
[A]
E=F/C
[B]
E=F*C
[C]
E=F/Q
[D]
E=F*Q
(22)
The insulant between the two plates of a capacitor is called _______
[A]
Conductor
[B]
Semi-conductor
[C]
Dielectric
[D]
Superconductor
(23)
Which of the following is less general in chracters as compared to genus
[A]
Species
[B]
Family
[C]
Class
[D]
Division
(24)
Electric field strength on a dust particle having charge equal to 8 × 10-19 when plates are separated by distance of 2 cm and have a potential difference of 5 kV is
[A]
2.0 × 10-13 N
[B]
3 N
[C]
5 N
[D]
20 N
(25)
Phenomena in which a charged body attract uncharged body is called
[A]
electrostatic induction
[B]
electric current
[C]
charge movement
[D]
magnetic induction
Answer: electrostatic induction
(26)
At all points uniform fields have
[A]
different strength
[B]
same strength
[C]
zero strength
[D]
infinite strength
(27)
An uncharged object has
[A]
more protons
[B]
more electrons
[C]
equal electrons and protons
[D]
no protons and electrons
Answer: equal electrons and protons
(28)
A field that spreads outwards in all directions is
[A]
radial
[B]
non radial
[C]
strong
[D]
weak
(29)
Fields that act on objects with masses are
[A]
electric fields
[B]
magnetic fields
[C]
force fields
[D]
gravitational fields
Answer: gravitational fields
(30)
Where an electric charge experiences a force, there is an
[A]
electric field
[B]
magnetic field
[C]
electric current
[D]
conventional current
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