Question

Please help with 5 and 6

AND SHOW UNITS 1. What is the resistance of a thin tube iled with saline solution that is 2 cm in length and has a cross sectional area of 1 x 10 m2? Assume the resistivity of salline solution to be 0.1 Qm How 2. much charge is moved over a period of 10 s for a circuit that has a current of 0.2 amperes? 3. A). Wha ch t is the electrical force set up between two objects separated by 4 m, object 1 has -3 x 102 cof arge and object 2 has -4 x 102 C of charge? B) Is the force attractive or repulsive? the two objects in question 3 are of the same physical size and are connected together with a rge move from object 1 to object 2 or from object 2 to object 1? Why? conductor. Will cha Conceptual question, no calculations are required. You have a 4 V battery, E, and two resistors, R and R2, large as Ri. A) For configuration A, what is the current Is (expressed in terms of the other currents)? B) for configuration B, what is the current bs (expressed in terms of the other currents)? C) Which configuration (A or B) causes the greatest current output from the battery? D) Without doing any calculations, give the exact value of the change in voltage (in volts) across R in configuration A. E) Lik 5. that you configure in two different ways, A and B, shown below. Assume that Ra is twice as kewise (i.e. without calculations) give the exact change in voltage across both resistors (i.e. from a point just above R1 to a point just below R2) in configuration B. F) In configuration A, is greater, equal to, or less than l2? G) In configuration B, is I greater, equal to, or less than b? 6. The figure below shows three resistors R: 2 2, R 4 2, and R confured in iove different circuits with a battery, E 2 V. For each circuit, find the current emanating from te tstery, I, and the currents passing through each of the three resistors, I, l2, and ls. Show how you got your answers. R, R, R,

Answer 1

Solution is given in the attached image.

2. Solubo : 2 cm