Physics, 05.08.2021 01:10 issagirl05
8. An electric dipole of moment p⃗ is placed in a uniform electric field E⃗. Then (i) the torque on the dipole is p⃗ ×E→ (ii) the potential energy of the system is p⃗ .E→ (iii) the resultant force on the dipole is zero. Choose the correct option. (a) (i), (ii) and (iii) are correct (b) (i) and (iii) are correct and (ii) is wrong (c) only (i) is correct (d) (i) and (ii) are correct and (iii) is wrong
Answers: 2
Physics, 22.06.2019 04:50, ineedhelpplz40
Two technicians are discussing a resistance measurement between the can-h and can-l wires. technician a says this measurement should be done with the ignition switch in the "run" position. technician b states that a measurement of 0 ohms indicates an open in the network. which technician is correct?
Answers: 1
Physics, 22.06.2019 05:30, ninaaforever
Aforklift raises a 1,020 n crate 3.50 m up to a shelf. how much work is done by the forklift on the crate? the forklift does j of work on the crate.
Answers: 2
Physics, 22.06.2019 14:30, samehajamal1234567
When the displacement of a mass on a spring is 12a the half of the amplitude, what fraction of the mechanical energy is kinetic energy? at what displacement, as a fraction of a, is the mechanical energy half kinetic and half potential?
Answers: 3
Physics, 22.06.2019 15:00, ttorres013
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
8. An electric dipole of moment p⃗ is placed in a uniform electric field E⃗. Then (i) the torque on...
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