Question

5 A coil its (radius : NIaPPed vith 300 tures of vire on the periacter of a circular frase 8.0 ca). Each turn has the s sane area, equal to that of the frane. A nifore piane of the coil. This field changes eagnetic field is turned on perpendicular to the at a constnt rate froe 20 to 80 T in a tise of 20 s What is the sagnitade of tme induced eal in the coil at the instant the petic field has a варі tude of a 24V b. 18 V d. 10 V e 30 V 6 A circular loop of wire (radius-6.0 cs, resistance-40 ส) is placed i. nitot cagnetic field that makes an angle of 30° vith the plane of the loop. the field changes with tine according to B-30 sin(20) "T. where t is seasured Detereine the magnitude of the eurrent induced in the loop at t-/20 s. a. zero The magnitude of in s c. 8.5 ㎃ d. 6.8 A e. 0.34 . Two very long parallel wires carry currents in the positive x direction. One wire (current = 15 A) is coincident with the x axis. The other wire (current-50A) passes through the poist (0,4.0 m,0). hat is the aagnitude of the magnetic field at the point (0,0,3.0 m)? a. 3.8 T b. 2.7 T e. 2.9 eT d. 3.0 T e. 0.6 ET 8 Each of to parallel wires separa ted by 8.0 carries a 20-A current. These two currents are oppositely directed. Determine tbe agnitude of the magnetic field at a point that is 5.0 n f roe each of the wires. .2.0 T b. 1.6 T d. 1.8 T e. 1.0 T 0, A second charge of -50 μC 1s placed on the x axis at x 50 cn. What is the nagnitude of the electrostatic force on a third charge of 4.0 μC placed on the x axis at x-30 ca? 9. A charge of +80 μC is placed on the x axis at x a. 13 N c. 39 N d. 25 N e. 45 N If the charges and corresponding 10 Three point charges are positioned on the x axis. positions are +32pC at x = O. .20pC at x= 40 ce, and -60 Cat x #60 ca, what is the magnitude of the electrostatic force on the .32-pc charge? a. 84 b, 12% e. 48 S

Answer 1

5)

Option B is correct