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Quiz 3
Mdcat-past-papers - NMDCAT - Physics Quiz
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Board: NMDCAT | Subject: Physics |
41. The internal energy of a gas during an isothermal process:
Decreases
Increases
Becomes Zero
Remain constant
42. The thermodynamic process during which volume of the system remains constant is:
Isothermal
Isobaric
Isochoric
Adiabatic
43. For three moles of a gas Cp − Cv is:
R
3R
3/2R
2/3R
44. Which one is true about Cp and Cv:
Cp > Cv
Cv > Cp
Cv = Cp
both a & c are correct
45. The property due to which a substance attracts or repels other body is called:
Current
Charge
Magnetic field
All are correct
46. Force exerted by unit charge is called:
Charge density
Electric flux density
Electric field strength
Magnetic field
47. The concept of electric field lines was introduced by:
M. Faraday
Michelson
Henry
Newton
48. The values of Electric intensity will ___ due to the presence of dielectric medium:
increase
increase exponentially
decrease
remain same
49. A quantity which is related to both N/C and V/m is:
electric intensity
Electric force
electric energy
electric charge
50. One kilowatt hour = commercial unit of electric energy equal to:
3.6 × 10³
3.6 × 10⁴
3.6 × 10⁵
3.6 × 10⁶
51. A bulb has current 200A and voltage 220V. Find power:
40kW
20kW
44kW
44W
52. Formula of Power is:
P = VI
P = V/I
P = V²/I
All are correct
53. In capacitors, energy is stored in form of:
Gravitational energy
Electric intensity
Kinetic energy
Magnetic energy
54. Ohm time's farad is equivalent to:
Time
Charge
Distance
Capacitor
55. Capacitance of parallel plate capacitor depends upon:
Dielectric constant
Area of each plate
Distance b/w plates
All of above
56. Capacitance of a capacitor when a dielectric medium is introduced:
Increases
Decreases
Remain constant
First increase then decrease
57. The resultant capacitance is Ceq = C1 + C2 + C3. It happens in ___ combination.
Series
Parallel
Half Series - Half parallel
None
58. When currents are flowing through two long wires in same direction, electric field between them is:
Strong
Weak
Remains same
Infinite
59. Unit of magnetic permeability of free space is:
T•m
Henry/m
Volt
T•mA⁻¹
60. Unit of magnetic flux is:
Tesla
Weber
Volt
Weber•m⁻²
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