A point charge of 50 uC is placed in the XY-plane at a location with radius vector `r_(0)=2hati+3hatj` m. The electric field strength and its magnitude at a point with radius vector `r=8hati-5hatj` m is
`(epsilon_(0)=8.85xx10^(-12)C^(2)//N-m^(2))` 

A positive charge 50 muC is located in xy plane at a position vector r_0 = 4hati + 4hatj . the electric field strength E at a point whose position vector is vecr = 10hati - 4hatj is ( vecr_0 and vecr are expressed in metre)

A positive charge 50 muC is located in xy plane at a position vector r_0 = 4hati + 4hatj . the electric field strength E at a point whose position vector is vecr = 10hati - 4hatj is ( vecr_0 and vecr are expressed in metre)

A positive point charge 50 mu C is located in the plane xy at the point with radius vector r_(0) = 2i + 3j , where I and j are the unit vectors of the x and y axes. Find the vector of the electric field strength E and its magnitude ath the point with radius vector r = 8i - 5j . Here r_(0) and r are expressed in metres.

The electric potential at 0.3m from a point charge is 30V. What is the magnitude of the charge? Given epsilon_0=8.854xx10^-12 C^2 N^-1 m^-2

The electric potential at 0.1m from a point charge is 90V. What is the magnitude of the charge? Given, epsilon_0=8.854xx10^-12 C^2 N^-1 m^-2

The vectors 5hati+8hatj and 2i+7hatj are added. The magnitude of the sum of these vector is