1. considere un polígono regular de lado a y 2n vértices, donde consecutivamente se han puesto n cargas positivas q y luego n cargas negativas -q. En la figura se muestra el caso n=3. Determine
a) La fuerza eléctrica resultante y su dirección en el centro del polígono sobre una carga Q= -500µC.
b) La fuerza neta y su dirección producida sobre una carga positiva Q ubicada a 1o cm desde el centro del polígono a lo largo del eje x. a= 5cm; q= 500µC.
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