1.53 A particle with charge q=3 μC and mass 0.015 kg is tied to a non- conductive thread of length L = 17.5 cm long, which is tied at a pivot point p. The particle is on a friction-free horizontal table. At a given instant, the particle is released from rest, when the position of the thread forms an angle of 60°, with a uniform electric field of E = 350 V/m horizontally. Determine the speed of the particle when the wire and the electric field are collinear. E L=r FgE sen F=qE

The electric field strength between two parallel conducting plates separated by 3.60 cm is 4.90 ✕ 104 V/m. a) What is the potential difference between the plates (in kV)? and b)The plate with the lowest potential is taken to be at zero volts. What is the potential (in V) 1.00 cm from that plate (and 2.60 cm from the other)?

An electric dipole consisting of charges of magnitude 4.70 nC separated by 8.20 um is in an electric field of strength 1100 N/C. What are (a) the magnitude of the electric dipole moment and (b) the difference between the potential energies for dipole orientations parallel and antiparallel to E ? (a) Number i Units (b) Number i Units

A small drop of water is suspended motionless in air by a uniform electric field that is directed upward and has a magnitude of 7010 N/C. The mass of the water drop is 4.36 × 10-9 kg. How many excess electrons or protons reside on the drop?

Oppositely charged parallel plates are separated by 4.90 mm. A potential difference of 600 V exists between the plates. (a) What is the magnitude of the electric field between the plates? N/C (b) What is the magnitude of the force on an electron between the plates? N (c) How much work must be done on the electron to move it to the negative plate if it is initially positioned 2.84 mm from the positive plate?

A small object is connected to a lightweight cord of length L=1.20 m that is tied to a point P, as shown in the figure. The object, string, and point all lie on a frictionless, horizontal table. The object has mass m=.0100kg and charge q= 2.10 uC and is released from rest when the string makes an angle theta=60 with a uniform electric field of magnitude E=260 V/m. Determine the speed in m/a of the object when the string is parallel to the electric field.

Two identical balls each having a density p are suspended from a common point by two insulating strings of equal length. Both the balls have equal mass and charge. In equilibrium, each string makes an angle with the vertical. Now, both the balls are immersed in a liquid. As a result, the angle does not change. The density of liquid is o. Find the dielectric constant of the liquid.

What is the magnitude, in volts, of the maximum potential difference between two parallel conducting plates separated by 0.51 cm of air?

Dry air can support a maximum electric field strength of about 3.0 × 106 V/m. Above that value, the field creates enough ionization in the air to make the air a conductor. This allows a discharge or spark that reduces the field. What, then, is the maximum voltage between two parallel conducting plates separated by 2.5 cm of dry air?

k3 8.99 x 10° Nm?/C?, me 3D 9.11 x 10-31 kg, e %3D 1.6 х 10-19 С, тр 3D 1.67 х 10-27 kg 1. Electrons start from rest and are accelerated east by two plates (parallel to the north/south directions) through a potential difference. They then pass into a second set of parallel plates 1.2 cm long (parallel to the east/west direction). When the electrons leave the second set of plates they are moving at 3.0 x 106 m/s [E 30º N]. You may ignore gravity. (For this question but not in the real world!) Find the potential difference across the first set of plates and the electric field between the second set of plates. 1.2 cm Path of electron First set of plates Second set of plates