Assertion : Electrons move away from a region of lower potential to a region of higher potential.
Reason : Since an electron has a negative charge.
Assertion (A): |
Charges are given to plates of two plane parallel plate capacitors and (such that ) as shown in the figure. Then the key is pressed to complete the circuit. Finally, the net charge on the upper plate and the net charge on the lower plate of capacitor is positive. |
Reason (R): | In a parallel plate capacitor, both plates always carry equal and opposite charge. |
1. | Both (A) and (R) are True and (R) is the correct explanation of (A). |
2. | Both (A) and (R) are True but (R) is not the correct explanation of (A). |
3. | (A) is True but (R) is False. |
4. | (A) is False but (R) is True. |
Assertion : Each of the plates of a parallel-plate capacitor is given equal positive charge Q. The
charges on the facing surfaces will be same.
Reason : A negative charge (–Q) will be induced on each of the facing surfaces.
Assertion : Electric potential is a property of an electric field, regardless of whether a charged
object has been placed in that field.
Reason : Potential depends on test charge.
Assertion : Electric potential and electric potential energy are different quantities.
Reason : For a system of positive test charge and point charge electric potential energy = electric potential.
Assertion : The component of in any direction is the negative of the rate of change of the
electric potential with distance in that direction.
Reason : Potential gradient in any direction at a point gives total electric field at that point.
Assertion : Two equipotential surfaces cannot cut each other.
Reason : Two equipotential surfaces are parallel to each other.
Assertion : At a distance r from a +ve charged particle potential is V and electric field strength is E.
Then graph between & is straight line.
Reason : For a point charge
Assertion : Potential difference between two points lying in a uniform electric field may be equal
to zero.
Reason : Points of line normal to electric field is equipotential line.
Assertion : A particle of mass m and charge moves directly towards a fixed particle , which
has charge . The speed of is when it is far away from . The minimum separation
between the particles is proportional to .
Reason : Total energy remains conserved.