Two Stationary Point Charges Q₁ and Q₂ Are Shown in the Figure

question 75

Multiple Choice

Two stationary point charges q₁ and q₂ are shown in the figure along with a sketch of some field lines representing the electric field produced by them. What can you deduce from the sketch?

• A) q₁ is negative and q₂ is positive; the magnitudes are equal.
• B) q₁ and q₂ have the same sign; the magnitudes are equal.
• C) q₁ is positive and q₂ is negative; the magnitude of q₁ is greater than the magnitude of q₂.
• D) q₁ is negative and q₂ is positive; the magnitude of q₁ is less than the magnitude of q₂.
• E) q₁ and q₂ have the same sign; the magnitude of q₁ is greater than the magnitude of q₂.

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Definitions:

Full-Rectification

The conversion of AC (alternating current) to DC (direct current) using both halves of the input waveform, usually in power supply or electronic signal processing.

Rotor

The rotating part of an electrical or mechanical device, such as the part in an electric generator or motor which turns around a stationary part called a stator.

Stator

(1) A stationary element in a rotating component; (2) The stationary member of an alternator into which electrical current is induced by the rotor; (3) Intermediary in a torque converter torus located between the impeller and turbine; redirects oil from the turbine back to the impeller.

Rectifier

An electrical device that converts alternating current (AC) to direct current (DC), often used in power supply systems.