Consider the circuit shown in the figure. Suppose that E = 13 V. Part A Find the current through the resistor a and the potential difference across the resistor a  Express your answer with the appropriate units. Part B Find the current through the resistor b and the potential difference across the resistor b  Express your answer with the appropriate units. Part C Find the current through the resistor c and the potential difference across the resistor c  Express your answer with the appropriate units. Part D Find the current through the resistor d and the potential difference across the resistor d Express your answer with the appropriate units.

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.