An electret is similar to a magnet, but rather than being permanently magnetized, it has a...
An electret is similar to a magnet, but rather than being permanently magnetized, it has a permanent electric dipole moment. Suppose a small electret with electric dipole moment 1.0 × 10^−7 C m is 25 cm from a small ball charged to + 65 nC, with the ball on the axis of the electric dipole. What is the magnitude of the electric force on the ball?
What is the charge on the ball bearing? A small glass bead has been charged to +20 nC. A tiny ball bearing 1.0 cm above the bead feels a 0.018 N downward electric force. What is the charge on the ball bearing?
A small glass bead has been charged to + 25 nC . A tiny ball bearing 3.0 cm above the bead feels a 1.4×10−2 N downward electric force. What is the charge on the ball bearing?
A small glass bead has been charged to + 30.0 nC. A small metal ball bearing 2.10 cm above the bead feels a 1.60x10-2 N downward electric force. Part AWhat is the charge on the ball bearing?
A thin coil has 60 circular turns of wire of radius 4 cm. The current in the wire is 8 amperes. (a) What is the magnetic dipole moment of this coil? (b) At a distance of 40 cm from the center of the coil, along the axis of the coil, what is the approximate magnitude of the magnetic field contributed by the coil? The coil is placed with its axis along the x axis. A bar magnet whose magnetic dipole...
A small glass bead has been charged to + 25 nC . A tiny ball bearing 2.0 cm above the bead feels a 1.8×10−2 N downward electric force. What is the charge on the ball bearing? Express your answer in nanocoulombs.
A small glass bead has been charged to +60.0 nC. A small metal ball bearing 2.10 cm above the bead feels a 1.70x10-2 N downward electric force ?Part A What is the charge on the ball bearing? Express your answer with the appropriate units.
1 & 2
1,(7 points) Three point-like charged objects lie along the x-axis, One has a charge of +154 nc and is located at the origin; one has a charge of +21.9 nC and is located at x1.78 cm; the third has a charge of -16.2 nC and is located at x +1.43 cm. What is the magnitude of the net force on the charge at the origin? [mN- 0.001 N.] a) 1.40 mN b) 12.4 mN c) 20.5 mN...
please help me I am have problem understanding this question 1)A very long straight wire has charge per unit length 1.48×10−10 C/m . At what distance from the wire is the magnitude of the electric field equal to 2.53 N/C ? Use 8.85×10−12 C2/(N⋅m2) for the permittivity of free space, and use π=3.14159. 2)A −12 nC charge is located at (x,y)=(1.0 cm, 0 cm). PART A) What is the electric field at the position (x1,y1)=(5.0 cm , 0 cm) in...
Need Help Physic Part A-D
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A dipole is centered at the origin, and is composed of charged particles with charge te and -e, separated by a distance 6 x 10 10 m along the y axis. The +e charge is on the -y axis, and the -e charge is on the ty axis A proton is located at <0, 2 x 10-8, 0> m. What is the force on the proton, due...