A 1-m length of tungsten wire draws 5 A when connected across a battery. The wire is then cut into two. The two pieces of wires are then connected in parallel across the same battery. They draw a total of 36 A. Determine the lengths of the two pieces of wires.

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Q: らと2 Ry = 10 K2 %3D R3- SIOKR Rs 36X R7 =1KS2 = SK2 %3D

A: SOlution: As given in the circuit: V = 36 V Resistors in series and parallel

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A: I2 = 2 AR2 = 4 ohm V1 = 6 v R1 = 2 ohm R3 = 5 ohm

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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.