Photon Academy Of Science 04 (Unit 1 Whole)

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1. In India frequency of AC is
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Photon Academy Of Science 04 (Unit 1 Whole) - Quiz

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2. Amount of work done in bringing a unit positive charge from infinity to point in an electric field is termed as
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3. One Joule per coulomb is called?
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4. What is si unit of capacitance 
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5. In domestic wiring we use which type of combination 
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6. What is real form of First principle of electric current 
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7. If two capacitors of lOμF each are connected in parallel, their equivalent capacitance will be?
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8. A, B and C are three points in a uniform electric field. The electric potential is [NEET 2013]
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9. Which one do you like?
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10. A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is
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11. In the electric field due to a point charge q, a test charge is carried from A to the points B, C, D and E lying on the same circle around q. The work done is
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12.  Calculate the equivalent capacitance between the points a and b.       capacitors example
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13. A dielectric slab which is responsible for increasing capacitance is
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14. Coulomb's force between 2 point charges 10µC and 5µC placed at a distance of 150cm is
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15. What would be energy supplied by charge if a point charge of +2 is transferred from a point at potential 100V to a point at potential 50V?
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16. A charge 'Q' is placed at the centre of a hemispherical surface of radius 'R'. The flux of electric field due to charge 'Q', through the surface of hemisphere is
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17. Which one will be show maximum value of resistivity 
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18. Name the event when a metal losses their resistivity at a definite point of temperature is called 
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19. If 2 bodies are oppositely charged with 400µC and 200µC, distance between them in air is 0.5 m. force between bodies should be
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20. A dielectric K = 2 is inserted between the plates of a 20μF capacitor. It capacitance will become  In  
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21. The electric field intensity at a point situated 4 meters from a point charge is 200 N/C. If the distance is reduced to 2 meters, the field intensity will be
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22. An electric dipole is placed at an angle of 30° with an electric field intensity 2 m 105 N/C. It experiences a torque equal to 4 N m. The charge on the dipole, if the dipole length is 2 cm, is [NEET 2016]
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23. The force between two charges is 120 N. If the distance between the charges is doubled, the force will be
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24. If positively charged pendulum is oscillating in a uniform electric field as shown in figure. Its time period as compared to that when it was uncharged:
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25. If the static electric force is 144 N, what is the distance between both charges… (1μC = 10-6 C and k = 9.109 N.m2.C-2)
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26. Electric charge q , q and -2q are placed at the corners of an equilateral triangle ABC of side L. The magnitude of electric dipole moment of the system is
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27. A combination of capacitors is set up as shown in the figure. The magnitude of the electric field, due to a point charge Q (having a charge equal to the sum of the charges on the 4 μF and 9 μF capacitors), at a point distant 30 m from it, would equal : [JEE Main 2016]
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28. Three concentric metallic spherical shells of radii R, 2R, 3R, are given charges Q1, Q2, Q3, respectively. It is found that the surface charge densities on the outer surfaces of the shells are equal. Then, the ratio of the charges given to the shells, Q1 : Q2 : Q3, is [IIT JEE 2009]
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29. If we increase length of any conductor wire 10% then what is new value of resistance 
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30. What is the value of flux for one face of cube
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31. The figure is a plot of lines of force due to two charges q1 and q2. Find out the sign of charges
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In India frequency of AC is
Amount of work done in bringing a unit positive charge from infinity...
One Joule per coulomb is called?
What is si unit of capacitance 
In domestic wiring we use which type of combination 
What is real form of First principle of electric current 
If two capacitors of lOμF each are connected in parallel, their...
A, B and C are three points in a uniform electric...
Which one do you like?
A capacitor stores 0.24 coulombs at 10 volts. Its capacitance is
In the electric field due to a point charge q, a test charge is...
 Calculate the equivalent capacitance between the points a and b....
A dielectric slab which is responsible for increasing capacitance is
Coulomb's force between 2 point charges 10µC and 5µC...
What would be energy supplied by charge if a point charge of +2 is...
A charge 'Q' is placed at the centre of a hemispherical surface of...
Which one will be show maximum value of resistivity 
Name the event when a metal losses their resistivity at a definite...
If 2 bodies are oppositely charged with 400µC and 200µC,...
A dielectric K = 2 is inserted between the plates of a 20μF...
The electric field intensity at a point situated 4 meters from a point...
An electric dipole is placed at an angle of 30° with an electric...
The force between two charges is 120 N. If the distance between the...
If positively charged pendulum is oscillating in a uniform electric...
If the static electric force is 144 N, what is the distance...
Electric charge q , q and -2q are placed at the corners of an...
A combination of capacitors is set up as shown in the figure. The...
Three concentric metallic spherical shells of radii R, 2R, 3R, are...
If we increase length of any conductor wire 10% then what is new value...
What is the value of flux for one face of cube
The figure is a plot of lines of force due to two charges q1 and...
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