Who wants to show off your intellect to help me?
1) Identical point charges of 1.7 (micro Coulumbs) are fixed diagonally to opposite corners of a sqaure. A third charge is then fixed at the center of a square, such that it causes the potentials at the empty corners to change signs without changing magnitudes. Find the sign and magnitude of the third charge.
2) Equipotential surface A has a potential of 5650 V, while equipotential surface B has a potential of 7850V. A particle has a mass of 5 x 10^-2 kg and a charge of 4 x 10 ^ -5 C. The particle has a speed of 2m/s on Surface A. An outside force is applied to the particle, and it moves to Surface B, arriving there with a speed of 3m/s. How much work is done by the outside force in moving the particle from A to B?
(I have absolutely no idea how to involve the mass and velocity in here..)
3) The corners of a square have potentials of 505, 495, 515, 505V, and in the middle is 505 V. Each of the four points is 6 x 10^-3 m from the center..find the magnitude and direction of the electric field in the vicinity of the origin..
1) Identical point charges of 1.7 (micro Coulumbs) are fixed diagonally to opposite corners of a sqaure. A third charge is then fixed at the center of a square, such that it causes the potentials at the empty corners to change signs without changing magnitudes. Find the sign and magnitude of the third charge.
2) Equipotential surface A has a potential of 5650 V, while equipotential surface B has a potential of 7850V. A particle has a mass of 5 x 10^-2 kg and a charge of 4 x 10 ^ -5 C. The particle has a speed of 2m/s on Surface A. An outside force is applied to the particle, and it moves to Surface B, arriving there with a speed of 3m/s. How much work is done by the outside force in moving the particle from A to B?
(I have absolutely no idea how to involve the mass and velocity in here..)
3) The corners of a square have potentials of 505, 495, 515, 505V, and in the middle is 505 V. Each of the four points is 6 x 10^-3 m from the center..find the magnitude and direction of the electric field in the vicinity of the origin..
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