Its B. I had the question just a week ago
Force is a physical quantity. Thus it makes a reasonable sense to say that it has some units. electric force has a unit of newton too. attraction occurs because there is conservation of charges. thus b is answer
The Electric field is E=23400 V/m.
What is electric potential ?
The amount of labor required to convey a unit of electric charge from a reference point to a given place in an electric field is known as the electric potential (also known as the electric field potential, potential drop, or the electrostatic potential). More specifically, it is the energy per unit charge for a test charge that is negligibly disruptive to the field under discussion.
The electric field of a spherical conductor is given by:
Here 'E' is the electric field and 'Q' is the electric charge.
therefore putting the values we get,
E=23400 V/m
To learn more about electric field click on the link below:
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Answer:
The capacitance is 11 F for half and fully charged capacitor.
Explanation:
Capacitance of capacitor is given by the expression
Where ε is the vacuum permittivity, A is the area of plates and d is the separation between plates.
So capacitance does not depend upon charge and potential. So capacitance fully and half charged capacitors are same.
Here the capacitance is 11 F for half and fully charged capacitor.
<span>Electric current is produced when a changing magnetic field is applied to a conductor, an electromotive force (EMF) is produced, thus causing a suitable path.</span>