Please correctly answer all questions

Question 1 11!- In the gure provided a wire consists of two segments made from the same material but with different diameters. If the current in segment 1 is I1 and the current in segment 2 is 12, which of the following is true about the strength of their drift velocities (\"0001 and (Ugh in the two segments? O [Udh is equal to (11:02 O [tin-)1 isless than (17,102 0 (\":01 is greater than (1)02 Question 2 It the current in a wire is doubled. how will this affect the mean time between collisions? O The mean time between collisions will be halved. O The mean time between collisions will remain unchanged; 0 The mean time between collisions will be doubled. Question 3 The circuit below has resistors R1: 22.4 (2, R2 = 3.90 Q,R3 = t .80 , and R4 = 5.30 9 connected to a batten! wth potential A V= 42.0 V What is the equivalent resistance of the circuit? 03340 04.57:) 01040 09.140 Question 4 In the gure provided. bulbs A and B are initially glowingu Which ofthe following is true ifthe switch is closed? 0 Bulb A gets brighter while bulb B goes out. O Bulb B gets brighter while bulb A goes out. 0 Both bulb A and B get brighter. 0 Both bulb A and B get dimmer