@mikhailcazi Since the majority of current will flow through the resistance then how will the ammeter give full scale reading

@EmilioPisanty Okay.But I was answering for electric dipole.Aren't they only defined for opposite charges?

An electric dipole is combination of two equal and opposite charge separated by a distance d.So they always consist of equal magnitude because they are defined like that

(+) ------- 2(-) ------- (+). If you are talking about this configuration then yea,the net dipole moment will be equal to zero if this follows the condition for dipole. Iju

Will depend on nature of charges present on the combination.Also an electric dipole indeed consists of two equal and opposite charges

@Floris What I don't understand is why does applying force on the upper block causes same acceleration in the lower block......Do these blocks act as a system or something

How did you determine them to be systems......I suck at identifying them?

Can we use L=Iw for any axis of rotation in rigid body?

Okay that explains it for the point A but what about the point C.Because of the impulse,the rod will start rotating so what will be cause of the impulse at C and it's direction to be right? Sry for dragging this too long

The impulse at B is equivalent to an impulse (to the right) at C and an anti-clockwise torque about C. What does torque have to do with impulse...My above question was imo based on this

So the impulse acts along all parts of the rod,right

Can you tell me the reason for the impulse by the pivot..why is it present and even at the centre also as shown in the diagram above??Also How can we use B as a reference point when it has a torque acting along it's axis

I know this is somewhat of a stupid question but how is water the surrounding and stone the system....can we reverse them also?