1. Electric Charges and Fields
medium

$(a)$ સ્થિત વિદ્યુત ક્ષેત્ર રેખા એ સળંગ વક્ર છે. એટલે કે ક્ષેત્ર રેખાને અચાનક ભંગાણો (ગાબડાં, વિચ્છેદ)ન હોઈ શકે. આવું શા માટે? $(b)$ બે ક્ષેત્ર રેખાઓ કોઈ બિંદુએ એકબીજાને શા માટે છેદતી નથી તે સમજાવો.

Option A
Option B
Option C
Option D

Solution

$(a)$ An electrostatic field line is a continuous curve because a charge experiences a continuous force when traced in an electrostatic field. The field line cannot have sudden breaks because the charge moves continuously and does not jump from one point to the other.

$(b)$ If two field lines cross each other at a point, then electric field intensity will show two directions at that point. This is not possible. Hence, two field lines never cross each other.

Standard 12
Physics

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