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3 years ago

When can an electric field be measured at any point from the force on a stationary test charge at that point?

Physics

1 answer:

bogdanovich [222]3 years ago

8 0

Answer:

Electric field be measured at any point from the force on a stationary test charge at that point, when the force on the test charge is generated only by the coulomb field (E) of static charges.

Explanation:

Total force on a test charge is given as;

F = qE + q(V x B)

F = q(E + V x B)

Where;

F is the total force on the test charge

q is the test charge

E is the electric field

B is the magnetic field

V is the velocity of the test charge

F = q(E + V x B)

for a stationary test charge, V = 0

The equation above reduces to;

F = qE

Thus, electric field be measured at any point from the force on a stationary test charge at that point, when the force on the test charge is generated only by the coulomb field (E) of static charges.

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Answer:

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Explanation:

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3 years ago

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$\huge\boxed{\text{C. 293K}}$

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We can automatically eliminate choices B and D since they are not equal to 20°C.

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K = C° + 273

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3 years ago

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storchak [24]

Answer:

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Explanation:

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3 years ago

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SIZIF [17.4K]

Answer:

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