Electric Charges and Fields MCQs | Electric Charges and Fields Objective Type Questions & Answers

Questions
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

Answer: E=F/Q
22 The insulant between the two plates of a capacitor is called _______
A Conductor
B Semi-conductor
C Dielectric
D Superconductor

Answer: Dielectric
23 Which of the following is less general in chracters as compared to genus
A Species
B Family
C Class
D Division

Answer: Species
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

Answer: 2.0 × 10-13 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

Answer: same 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

Answer: radial
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

Answer: electric field
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