3. What is the magnitude and direction of the electric field at 0.25 m from a −5.6 × 10−6? point charge?

a. Determine the magnitude and direction of the electric field at point P, 20 cm away from charge Q = +10?C b. Two charges are lying on the horizontal axis and are 0.2m away from each other. The charges are: ?1 =20?? ??? ?2 = −40??. Determine the magnitude and direction of the force on q1 by q2. c. An electron (q = -1.6 x 10-19 C) is initially at rest. At some time later, the electron accelerates due to a 5kV potential. Determine the change in electrical potential energy and final speed of the electron. Write down three examples of the use of electricity and magnetism in the medical field. For example, an automated external defibrillator (AED) consists of a capacitor to store electrical energy and electrode pads to deliver an electrical shock to your heart. As a result, an automated external defibrillator (AED) with CPRincreases the chances of restoring a victim’s heart rate after a sudden cardiac arrest. Use three of your ownexamples

1. Two point charges q₁ and q2 both have a charge equal to +6.0 nC and are on the y axis at y₁ = +3.0 cm and y2 = -3.0 cm respectively. a. What is the magnitude and direction of the electric field on the x axis at x = 4.0 cm? b. What is the force exerted on a third change qo= 2.0 nC when it is placed on the x axis at x = 4.0 cm?

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