Electric Charge Pt.4

Question 1

Front

Answer 1

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Question 2

What is the formula for the resultant electric field when two fields E1 and E2 are at an angle θ?

Answer 2

E = sqrt(E1^2 + E2^2 + 2E1E2cosθ)

Question 3

What is the formula for the electric field due to a continuous line charge distribution?

Answer 3

E = (1/4πε₀) ∫ (λ dℓ / r²) r̂

Question 4

What is the formula for the electric field due to a continuous surface charge distribution?

Answer 4

E = (1/4πε₀) ∫ (σ da / r²) r̂

Question 5

What is the formula for the electric field due to a continuous volume charge distribution?

Answer 5

E = (1/4πε₀) ∫ (ρ dv / r²) r̂

Question 6

What happens to a charged particle in a uniform electric field between two plates?

Answer 6

It experiences a constant force F = qE, leading to uniform acceleration a = qE/m.

Question 7

What are the kinematic equations for a particle starting at rest in a uniform electric field?

Answer 7

v = at = (qE/m)t, s = ½at² = ½(qE/m)t², v² = 2as = 2(qE/m)s