help magnetism direction
direction of electric field is outward from each charge at distance of point increases from the charge it's strength decreases, also electric field add as vectors. so at each point draw electric field lines from each charge and add them as vectors.
this?
|dw:1393489146428:dw|
i think this example can help you
wow thasts a fantastic problem to understand directions of the E field.. saved it :D thank you now.. you know that e field at any point due to multiple charges = resultant of all the e fields at that point due to indivisual charge.. lemme give some example|dw:1393490333375:dw| consider two positive charges as shown, and suppose u wanna find the direction of E field at point p.. how would we do it? well.. find the direction of e field due each charge.. like shown, (since both are positive, they put E fields away from each them)
now the net field, is the resultant two vectors shown in that direction, having same magnitude would result as follows|dw:1393490463275:dw|
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