QUESTION 1 A coil of ten turns of area 0.01 m2 and resistance 5Q is placed perpendicularly inside a magnetic field whose intensity and direction changes as given in the figure. What is the magnitude of the flux of magnetic field crossing the area of the coil at time = 6 sec? B(T) 0.1 0.3 0.5 0.8 0.9 t(s) -1 -2 O 2 Wb 0.2 Wb O 20 Wb O 0.02 Wb O none of these

A solenoid 3.0 cm long consists of 9000 loops of wire. If the magnetic field inside the solenoid is measured as 1.0 T, what is the magnitude of the current that flows through it? a 0.037 A b 0.37 A c 2.65 A d 3.05 A e 0.58 A

Question 2: The figure below shows a 10cm x 10cm square bent at a 90° angle. A uniform 0.050 T magnetic field points downward at a 45° angle. What is the magnetic flux through the loop? 45% 5 cm B 5 cm 10 cm

1.70 x 104 - m In 1996, NASA performed an experiment called the Tethered Satellite experiment. In this experiment, a length of wire was let out by the space shuttle Atlantis to generate a motional emf. The shuttle had an orbital speed of 7.70 x 10³ m/s, and the magnitude of the earth's magnetic field at the location of the wire was 5.10 x 10-5 T. If the wire had moved perpendicular to the earth's magnetic field, wat would have been the motional emf generated between the ends of the wire? Gr C

The current flowing through the conductor creates a magnetic field as shown. In what direction does the conventional current flow? Towards the end of the wire labelled "X" Towards the end of the wire labelled "Y"

1. The figure below shows a particle of mass, m = 6.67 x 10-18 kg and containing 5000 excess electron charges travelling with an initial velocity ủo = 60.0 m/s ĵ – 20.0 m/s k. Suddenly, a B = 3.40 T -k uniform magnetic field is turned on. x x x x x X x x x x x x x X X X X X X x X x x X X X X X X X X X X X X X X X X X X X X X x X VX X X X X X X X X X X X X X X X XX X X X X X x X X x x X X X X X X X X x XX x x X X X X X X X X x xX x x X X X X X X X X X x X x x X X X X X X X X X x X x x X X X

A coil of ten turns of area 0.01 m2 and resistance 5 Q is placed perpendicularly inside a magnetic field whose intensity and direction changes as given in the figure. B(T) 2 0.1 0.3 0.5 0.8 0.9 t(s) -2 QUESTION 5 How much power is dissipated by the coil at time = 0.6 seconds? O 0.2 W O 0.4 W O 0,5 W O None of these

A square wire 2.0 cm on each side is oriented so that a 5.00 mT magnetic field makes a 30.0° anglewith the normal to the plane of the square. If a 1.0 mA current causes a 32.0 N · m torque on thewire, how many loops does the wire make?A) 3.2 × 106 B) 4.5 × 1010 C) 1.6 × 1010 D) 3.2 × 1010

3. A 21.0 cm diameter coil consists of 34 turns of cylindrical copper wire 2.80 mm in diameter. A uniform magnetic field, perpendicular to the plane of the coil, changes at a rate of 8.50 × 10−³ T/s. Determine the current in the loop in milli-amps (the resistivity for copper is 1.72 × 10-³2.m). mA

Two conductors carrying currents of 6.0 A and 4.0 A are separated by 10.0 cm as shown. Determine the magnitude and direction of the magnetic field midway between the conductors. 10 cm 6.0 A 4.0 A 8.0x10-0 T into page 4.8x10- T repulsive O 4.0x10- T out of page O 4,0x10> T into page O 8.0x10-6 T out of page