Point charges 4µc and 2µc are placed at the vertices P and Q of a right angle triangle PQR respectively. Q is the right angle, `PR = 2 xx10^(-2) m` and `QR = 10^(-2) m` . The magnitude and direction of the resultant electric field at c is .........
Options:
(a) `4.28×10^9 NC^(-1) ,45^0 `
(b) `2.38×108 NC^(-1) , 40.9^0`
(c) `1.73×10^4 NC^(-1) , 34.7^0`
(d) `4.9 ×10^(10) NC^(-1) , 34.7^0`