Q: Define Coulomb's Law?
Ans: The force of attraction or repulsion between two charged bodies is directly proportional to the product of the quantity of charges (q1.q2) on them and inversely proportional to the square of the distance (square of r) between them.
Ans: The strength of the field at any point is known as electric intensity.
Ans: The electric field of a charge is a region of space surrounding it, In which a charge can feel its electrostatic effect in the form of a force.
Q: Define electric lines of force?
Ans: The direction of electric intensity in an electric field can also be indicated by drawing lines. These lines are known as electric lines of force.
Q: Define electron volt?
Ans: It is equal to the amount of energy supplied by an electron as it moves between two points having a potential difference of one volt.
Q: Define Farad?
Ans: It is the capacity of a conductor the potential of which rises by one volt when one coulomb charge is given to it. This is the unit of capacitance.
Q: Define capacitance?
Ans: The capacity of a conductor is equal to the amount of charge which raises the potential of the conductor by one volt. The unit of capacitance is farad.
Q: Define capacitor?
Ans: A device used for storing charge.
Q: Define fixed capacitor?
Ans: If plates of capacitor are immovable or fixed then such capacitor is called fixed capacitor. e.g paper capacitor, mica capacitor.
Q: Define variable capacitor?
Ans: The capacitor in which plates of capacitor are movable is called variable capacitor. e.g capacitor used in tuning of a radio set.
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Ans: The force of attraction or repulsion between two charged bodies is directly proportional to the product of the quantity of charges (q1.q2) on them and inversely proportional to the square of the distance (square of r) between them.
F = (1/4πε ̥ ) q₁q₂/r²Q: Define electric intensity?
Ans: The strength of the field at any point is known as electric intensity.
E (intensity) = F/qQ: Define electric field?
E = (1/4πε ̥ ) Q/r²
Ans: The electric field of a charge is a region of space surrounding it, In which a charge can feel its electrostatic effect in the form of a force.
Q: Define electric lines of force?
Ans: The direction of electric intensity in an electric field can also be indicated by drawing lines. These lines are known as electric lines of force.
Q: Define electron volt?
Ans: It is equal to the amount of energy supplied by an electron as it moves between two points having a potential difference of one volt.
Charge on an electron = q = 1.6 x 10⁻¹⁹ C
V₁-V₂ = 1V
1eV = 1.6 x 10⁻¹⁹ C x 1V
1eV = 1.6 x 10⁻¹⁹ J
Q: Define Farad?
Ans: It is the capacity of a conductor the potential of which rises by one volt when one coulomb charge is given to it. This is the unit of capacitance.
Q: Define capacitance?
Ans: The capacity of a conductor is equal to the amount of charge which raises the potential of the conductor by one volt. The unit of capacitance is farad.
Q = CV (here C is capacitance)
Q: Define capacitor?
Ans: A device used for storing charge.
Q: Define fixed capacitor?
Ans: If plates of capacitor are immovable or fixed then such capacitor is called fixed capacitor. e.g paper capacitor, mica capacitor.
Q: Define variable capacitor?
Ans: The capacitor in which plates of capacitor are movable is called variable capacitor. e.g capacitor used in tuning of a radio set.
You might also like:
Sound
Current Electricity
Circular Motion And Gravitation
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