Question 1 From the figure provided, what is the direction of the induced current if the bar moves upwards through a constant magnetic field? Counterclockwise O Clockwise There is no induced current. Question 2 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 B X X X X X X X A conducting loop of wire of radius 8.10 and resistance 1.90 , lies within a uniform magnetic field directed into the page, as shown in the figure above. At t= 0s, the magnetic field increases exponentially. What is the direction of flow of the current in the loop? O Counter-clockwise. O No current flows ClockwiseQuestion 3 B A magnet is pushed towards a conducting look of wire as shown above, inducing a clockwise current in the loop. What is the magnetic pole of the magnet at end A? O North pole. O None. O South pole. Question 4 An LC circuit oscillates at a frequency of 4.00x10 Hz. What will the frequency be if the inductance is doubled? O 2.83x103 Hz O 2.00x103 Hz O 5.66x103 Hz O 8.00x103 Hz100V 10UV From the gure provided. which of the following is true for the magnitude of the instantaneous value of the emf phasor c? .2 "he magnitude is increasing. w "he magnitude is constant. O "he magnitude is decreasing. Question 2 A resistor is connected across an oscillating emf with a peak current through the resistor of 9.00 A. If the resistance R is doubled, what is the peak current? O 6.36 A C 4.50 A C 9.00 A O 18.0 A Question 3 An inductor is connected across an oscillating emf with a peak current of 2.50 A. If the inductance _ is doubled, what is the peak current? O 5.00 A O 1.25 A O 2.50 A O 1.77 A Question 4 If the resonance frequency of a series RLC circuit is 5.00*10 Hz, what is the resonance frequency if the capacitance Cis doubled? O 1.00x104 Hz O 3.54x103 Hz O 5.00x103 Hz O 2.50x103 Hz