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You Are On Multi Choice Question Bank SET 997

49851. The number of current paths equals the number of resistors in parallel.



49852. The total resistance for two resistors in parallel is equal to the sum of the two resistors.



49853. The total current divides among parallel resistors in a manner directly proportional to the resistance values.



49854. A parallel circuit acts as a current divider.



49855. Addition of resistors in parallel increases total resistance and decreases total current.



49856. Total power in a parallel circuit is found by adding up the power of all the individual resistors.



49857. An ammeter has an internal resistance of 50 . The meter movement itself can handle up to 1 mA. If 10 mA is applied to the meter, the shunt resistor, RSH1, is approximately





49858. The total resistance of a parallel circuit is 50 . If the total current is 120 mA, the current through the 270 resistor that makes up part of the parallel circuit is approximately





49859. The currents into a junction flow along two paths. One current is 4 A and the other is 3 A. The total current out of the junction is





49860. When an additional resistor is connected across an existing parallel circuit, the total resistance





49861. When a 1.6 k resistor and a 120 resistor are connected in parallel, the total resistance is





49862. In cheese making process rennet act on the k-casein at------------and……………. Position





49863. The Gerber sulphuric acid should have a density ---------at 15 degree C





49864. Bakers yeast is------





49865. ----------is a measure of volatile water soluble fatty acids





49866. Koestler number of cow milk ranges from---------





49867. An RL high-pass filter consists of a 470 resistor and a 600 mH coil. The output is taken across the coil. The circuit's critical frequency is





49868. Referring to Problem 23, what will the output voltage be if the coil's internal resistance is neglected?





49869. A parallel resonant band-pass filter consists of a 6.8 resistor in series with a parallel network made up of an 8 H coil and a 120 pF capacitor. The output is taken across the capacitor/coil. Assume RW = 0 . What is the center frequency of the filter?





49870. A series resonant band-pass filter consists of a 2 mH coil, a 0.005 F capacitor, and a 120 resistor. The winding resistance of the coil is 12 . The output voltage is taken off the resistor. Input voltage is 12 Vrms. What is the output voltage magnitude at the center frequency (f0)?





49871. The same signal in Problem 2 is applied to an RC high-pass filter. If the reactance is zero at the input frequency, the output voltage is





49872. An RC low-pass filter consists of a 120 resistor and a 0.002 F capacitor. The output is taken across the capacitor. The circuit's critical frequency is





49873. Referring to Problem 8, assume the input voltage is 15 V ac. What is the output voltage at the critical frequency,fc?





49874. Referring to Problem 21, the filter's bandwidth is





49875. Referring to Problem 15, if the input voltage is a 6 V sine wave with a dc level of 10 V, what is the output voltage magnitude?





49876. In a certain low-pass filter, fc = 3.5 kHz. Its passband is





49877. An RC high-pass filter consists of an 820 resistor. What is the value of C so that Xc is ten times less than R at an input frequency of 12 kHz?





49878. A series resonant band-stop filter consists of a 68 resistor, a 110 mH coil, and a 0.02 F capacitor. The internal resistance, RW, of the coil is 4 . Input voltage is 200 mV. Output voltage is taken across the coil and capacitor in series. What is the output voltage magnitude at f0?





49879. A sinusoidal voltage with a peak-to-peak value of 18 V is applied to an RC low-pass filter. If the reactance at the input frequency is zero, the output voltage is





49880. Vout = 500 mV, and Vin = 1.3 V. The ratio Vout/ Vin expressed in dB is





49881. Referring to Problem 8, assume the input voltage is 15 V dc. What is the output voltage?





49882. At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is





49883. An RC high-pass filter consists of a 0.2 F capacitor and a 220 resistor. The output is taken across the resistor. The circuit's critical frequency is





49884. The roll-off rate of a basic RC or RL filter is 20 dB per decade.



49885. In an RL high-pass filter, the output is taken across the inductor and the output leads the input.



49886. In an RC high-pass filter, the output is taken across the resistor and the output leads the input.



49887. Critical frequencies are also called –3 dB frequencies.



49888. The bandwidth of a resonant filter is determined by the quality factor (Q) of the circuit and the resonant frequency.



49889. In an RC low-pass filter, the output voltage is taken across the resistor and the output lags the input voltage.



49890. In an RL low-pass filter, the output voltage is taken across the inductor and the output lags the input.



49891. A band-pass filter rejects all frequencies within a band between a lower and an upper critical frequency and passes all others.



49892. A band-stop filter passes frequencies between its lower and upper critical frequencies and rejects all others.



49893. The output voltage is 63.3% of its maximum at the critical frequencies.



49894. In a certain parallel resonant band-pass filter, the resonant frequency is 14 kHz. If the bandwidth is 4 kHz, the lower frequency





49895. An RL low-pass filter consists of a 5.6 mH coil and a 3.3 k resistor. The output voltage is taken across the resistor. The circuit's critical frequency is





49896. In a series resonant band-pass filter, a lower value of Q results in





49897. The maximum output voltage of a certain low-pass filter is 15 V. The output voltage at the critical frequency is





49898. A parallel resonant band-pass filter consists of a 90 resistor in series with a parallel network made up of a 60 mH coil and a 0.02 F capacitor. The output is taken across the capacitor/coil. The coil winding has a resistance of 20 . What is the center frequency of the filter?





49899. The typical agitation system used for bulk milk coolers is a -----------------agitator





49900. A homogenizer pump is usually a ---------pump





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