In the circuit shown in the figure . the 6.0 N resistor is consuming energy at a rate of 21.0 J/s when the current through it flows as shown. 20.0 1 170 E = ? 190 >6.0 2 20.0 1 25 V 3.0N 13 N 1.00 Part A Find the current through the ammeter A. ANSWER: I = A Part B What are the polarity and emf of the battery E, assuming it has negligible internal resistance? ANSWER: E = V

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Scalars and Vectors

Scalars and Vectors are the classification of physical quantities that are used to denote various terms in physics.