John is creating a series circuit of christmas lights. he wants to create a strand that has 2 fans and 20 lights. each fan has a resistance of 5 ohms. each light has a resistance of 3 ohms. what is the total resistance of the circuit? a. 76 ohms b. 66 ohms c. 70 ohms d. 60 ohms

Identify the arrows that show the correct direction of heat transfer. 66°f 112°f 98°f

Adding more pulleys to a system of pulleys needed to lift an object. a. increases the force b. decreases the force c. increases the amount of work d. decreases the amount of work

Question 7 [2 marks] in the circuit below, the electromotive force generated by the battery is e = 6.0 v, and the resistances are r1 = r4 = 1.0 q, r2 = r3 =2.0 q. r. the power delivered by the battery to the circuit is closest to a. 6 w в. 12 w с. 15 w d. 18 w e. 20 w final exam autumn 2014 page 5 of 9 68037 physical modelling faculty of science [2 mark] question 8 with reference to question 7, the current through resistor r2 is closest to a. 1 a в. 2 а c. 3 a d. 4 a e. 6 a