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"the radian is the si unit for measuring angles, and is the standard unit of angular measure used in many areas of mathematics. the length of an arc of a unit circle is numerically equal to the measurement in radians of the angle that it subtends; one radian is just under 57.3 degrees."
5.0 SR
12.0 SR
6.5 SR
"the coulomb (symbol: c) is the international system of units (si) unit of electric charge. it is the charge (symbol: q or q) transported by a constant current of one ampere in one second."
6.0 SR
"voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points. the difference in electric potential between two points in a static electric field is defined as the work needed per unit of charge to move a test charge between the two points"
3.0 SR
4.0 SR