Power density from an isotropic antenna is equal to ________
A. (frac{P_t}{4 pi R^2})
B. (frac{P_c}{4 pi R^2})
C. (frac{P_t}{2 pi R^2})
D. (frac{P_t}{4 pi R})
Answer:A
Power density from an isotropic antenna is equal to ________
A. (frac{P_t}{4 pi R^2}) B. (frac{P_c}{4 pi R^2}) C. (frac{P_t}{2 pi R^2}) D. (frac{P_t}{4 pi R})