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Anna71 [15]
3 years ago
6

Which of the following are true statements about the electric field? a. A moving charge produces a magnet anomaly. b. The electr

ic field points towards a negative charge and away from a positive charge. c. The direction of the electric field is the direction of acceleration of a positive test charge. d. The electric field is a charge-specific force field independent of any test charge. e. Equipotential lines imply magnitude and direction of the electric field. f. The electric field is a vector field that is found by taking the gradient of the negative potential. g. The electric field inside a spherical conducting shell in 3D is zero. h. If the electric field inside a conductor is nonzero, charges must not be moving; that is, there is a zero current. i. No electric field exists between the plates of a charged capacitor. j. The electric lines of force indicate the vector force experienced by a positive test charge released at a particular point.
Physics
1 answer:
mars1129 [50]3 years ago
4 0

Answer:

a,b,c,d,,f, g, j

Explanation:

e) equipotential lines are lines connecting points of equal potential

h) electric field inside the conductor is non-zero even when there is net movement of charge or non-zero current.

i) capacitors' plates are charged and an electric field exists between the plates.

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4 years ago
A 70mm long blockhas cross-section of 50mm by 10mm the block is subjected to forces 60KN (tension) on the 50mm by 10mm face and
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Answer:

970 kN

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By volumetric stress, we have that for there to be no change in volume, the total pressure applied by the given applied forces should be equal to the pressure removed by the added applied force

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The pressure due to the force F₂ = 110 kN/(70 mm × 10 mm) = 157.142857 MPa

The total pressure applied to the block, P = 120 MPa + 157.142857 MPa = 277.142857 MPa

The required force, F₃ = 277.142857 MPa × (70 mm × 50 mm) = 970 kN

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