The magnitude of the instantaneous value of the emf represented by the below phaser is O constant. O decreasing. O impossibleto tell. 0 increasing. Question 1 100 V b -100 V 100 V 100 V From the figure provided, which of the following is true for the magnitude of the instantaneous value of the emf phasor a? The magnitude is constant. The magnitude is increasing. The magnitude is decreasing. Question 2 A resistor is connected across an oscillating emf with a peak current through the resistor of 1.50 A. If the resistance R is doubled, what is the peak current? O 1.50 A 3.00 A O 1.06 A O 0.750 AQuestion 3 If a low-pass RC filter has a crossover frequency fo = 350. Hz, what will the crossover frequency be if the capacitor Cis doubled? O 700. Hz O 175 Hz O 247 Hz O 350. Hz Question 4 If the resonance frequency of a series RLC circuit is 5.50*10" Hz, what is the resonance frequency if the inductance & is tripled? 1.65x10# Hz O 1.83x10# Hz O 5.50x10 Hz O 3.18x10 Hz