A Rod of Infinite Length Has a Charge Per Unit

question 11

Multiple Choice

A rod of infinite length has a charge per unit length of λ = q/l) . Gauss's law makes it easy to determine that the electric field strength at a perpendicular distance r from the rod is, in terms of k = 4π₀) ^-1,

• A) kλ/r².
• B) kλ/r.
• C) 4πkλ/r.
• D) 2kλ/r.
• E) zero.

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Definitions:

Compounded quarterly

Interest calculation method where the interest is added to the principal every three months, affecting the overall amount on which future interest is calculated.

Perpetuity

An annuity in which payments continue indefinitely, typically at a fixed rate.

Compounded semi-annually

Accumulation method for interest where the interest is applied to the principal twice a year, thereby influencing the total amount of interest earned or paid.

Rate of inflation

The measure of the rate at which the general level of prices for goods and services is rising, and subsequently, purchasing power is falling.