49951. A 120 resistor is in parallel with a capacitor with a capacitive reactance of 40 . Both components are across a 12 V ac source. What is the magnitude of the total impedance?
49952. A 47 resistor and a capacitor with 150 of capacitive reactance are in series across an ac source. The impedance, expressed in rectangular form, is
49953. A 2 k resistor and a 0.002 F capacitor are in series across an ac source. Current in the circuit is 6.50 mA. The true power is
49954. A capacitor with 150 of capacitive reactance is across an ac source. The impedance, expressed in polar form, is
49955. When the frequency of the voltage applied to a series RC circuit is decreased, the impedance
49956. A complex number represents a phasor quantity.
49957. Complex numbers can be added and subtracted but not multiplied or divided.
49958. The power factor (PF) indicates how much of the apparent power is true power.
49959. In an RC circuit, the impedance is determined by both the resistance and the capacitive reactance combined.
49960. The polar form of a complex number consists of a real part and a j part.
49961. The impedance of a series RC circuit varies directly with frequency.
49962. In a lag network, the output voltage lags the input voltage in phase.
49963. Positive numbers can be represented by points to the right of the origin on the horizontal axis of a graph.
49964. An imaginary number is one that exists only in the mind of the mathematician.
49965. The resistor voltage is always out of phase with the current.
49966. The circuit phase angle is the angle between the total current and the applied (source) voltage.
49967. Apparent power is expressed in watts.
49968. A filter passes all frequencies.
49969. Total current in an RC circuit always leads the source voltage.
49970. The capacitor voltage always leads the current by 90°.
49971. In the complex plane, the number 14 – j5 is located in the
49972. Point +4 on the complex plane is
49973. A 470 resistor and a 0.2 F capacitor are in parallel across a 2.5 kHz ac source. The admittance, Y, in rectangular form, is
49974. A positive angle of 30° is equivalent to a negative angle of
49975. In a series RC circuit, 12 V(rms) is measured across the resistor and 15 V(rms) is measured across the capacitor. The rms source voltage is
49976. ---------------is the product prepared from whey
49977. ------------is an example for instantization system
49978. Maximum residual limit(MRL)recommended by FDA for aflatox in M1 in milk is
49979. The average calorific value of cow milk is -------------C/100 g
49980. Six sigma permits --------defects per million opportunities
49981. A 470 resistor and a coil with 125 inductive reactance are in parallel. Both components are across a 15 V ac voltage source. Current through the inductor is
49982. A 1.2 k resistor is in series with a 15 mH coil across a 10 kHz ac source. The magnitude of the total impedance is
49983. When the frequency is decreased, the impedance of a parallel RL circuit
49984. A 470 resistor and a 200 mH coil are in parallel. Both components are across a 1.5 kHz ac source. The total admittance of the circuit, in polar form, is
49985. Referring to Problem 23, the reactive power is
49986. A 12 k resistor is in series with a 90 mH coil across an 8 kHz ac source. Current flow in the circuit, expressed in polar form, is I = 0.30° mA. The source voltage, expressed in polar form, is
49987. A 140 resistor is in parallel with an inductor having 60 inductive reactance. Both components are across a 12 V ac source. The magnitude of the total impedance is
49988. When the frequency of the voltage applied to a series RL circuit is decreased, the impedance
49989. In a parallel RL circuit, there are 3 A rms in the resistive branch and 3 A rms in the inductive branch. The total rms current is
49990. A 47 resistor is in series with an inductive reactance of 120 across an ac source. The impedance, expressed in polar form, is
49991. When the resistor voltage in a series RL circuit becomes less than the inductor voltage, the phase angle
49992. Which of the following power factors results in less energy loss in an RL circuit?
49993. Referring to Problem 20,
49994. A 3.3 k resistor and a 120 mH coil are in parallel. Both components are across a 2 kHz, 12 V ac source. The total current in the circuit is
49995. When the frequency of the voltage applied to a series RL circuit is increased, the phase angle
49996. If a load is purely inductive and the reactive power is 12 VAR, the apparent power is
49997. If the frequency is halved and the resistance is doubled, the impedance of a series RL circuit
49998. Total current in an RL circuit always lags the source voltage.
49999. The resistor voltage in an RL circuit is always out of phase with the current.
50000. A filter passes certain frequencies and rejects others.