Photoelectric effect
Chemical effect
Magnetic effect
Induction
Answer is Right!
Answer is Wrong!
Electrostatics
42. Which of the following capacitors is marked for polarity ?
Air
Paper
Mica
Electrolytic
Answer is Right!
Answer is Wrong!
Detailed SolutionWhich of the following capacitors is marked for polarity ?
43. A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is
0.024 F
0.12 F
0.6 F
0.8 F
Answer is Right!
Answer is Wrong!
Detailed SolutionA capacitor stores 0.24 coulombs at 10 volts. Its capacitance is
44. The relative permittivity has the following units
F/m
m/F
Wb/m
no units
Answer is Right!
Answer is Wrong!
Detailed SolutionThe relative permittivity has the following units
45. An electric field line and an equipotential surface are
Always parallel
Always at 90°
Inclined at any angle
None of the above
Answer is Right!
Answer is Wrong!
Detailed SolutionAn electric field line and an equipotential surface are
46. Which of the following is not a vector ?
Linear momentum
Angular momentum
Electric field
Electric potential
Answer is Right!
Answer is Wrong!
47. Electric displacement is a______quantity.
scalar
vector
both of the above
none of the above
Answer is Right!
Answer is Wrong!
48. Electric field intensity is a quantity
scalar
vector
both (A) and (B)
none of the above
Answer is Right!
Answer is Wrong!
49. capacitors can be used only for D.C.
Air
Paper
A. Air B. Paper C. Mica
Electrolytic
Answer is Right!
Answer is Wrong!
50. capacitors are mainly used for radio frequency tuning.
Paper
Air
Mica
Electrolytic
Answer is Right!
Answer is Wrong!
Detailed Solutioncapacitors are mainly used for radio frequency tuning.