27 A battery of e. m.f 8 volts and internal resistance 1 Ohm is connected
to a straight wire of length 10 cm, of cross sectional area 3 x 10-8 m² and its resis-
tivity 4.5 x 10-6 12. m. calculate the magnetic flux density at a point which lies at
normal distance 20 cm away from the center of the wire. d Lase

Aball thrown by ginger is moving upward through the air. diagram a shows a box with a downward arrow. diagram b shows a box with an upward arrow. diagram c shows a box with a downward and upward arrow equal in size. diagram d shows a box with a downward and upward arrow with the downward arrow larger in size. which force diagram represents the forces on the ball? you may neglect the effects of air resistance.